Newtons Laws of motion Newtons Three Laws of
![Newton’s Laws of motion Newton’s Laws of motion](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-1.jpg)
![Newton’s Three Laws of motion: 1. An object at rest will remain at rest, Newton’s Three Laws of motion: 1. An object at rest will remain at rest,](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-2.jpg)
![F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-3.jpg)
![Example: What force causes a 4. 0 kg object to accelerate at 6. 0 Example: What force causes a 4. 0 kg object to accelerate at 6. 0](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-4.jpg)
![Example: A 2. 1 kg hammer accelerates from rest under the influence of a Example: A 2. 1 kg hammer accelerates from rest under the influence of a](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-5.jpg)
![Whiteboards: Newton’s Second Law 1|2|3|4|5 TOC Whiteboards: Newton’s Second Law 1|2|3|4|5 TOC](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-6.jpg)
![What unbalanced force causes a 892 g object to accelerate at -9. 81 m/s/s? What unbalanced force causes a 892 g object to accelerate at -9. 81 m/s/s?](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-7.jpg)
![What is the acceleration of a 12 kg object if you exert 37 N What is the acceleration of a 12 kg object if you exert 37 N](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-8.jpg)
![What is the mass of an object if when there is a 128 N What is the mass of an object if when there is a 128 N](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-9.jpg)
![A 16 kg object going 23 ms-1 is stopped by a force in. 125 A 16 kg object going 23 ms-1 is stopped by a force in. 125](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-10.jpg)
![A 3. 84 kg object going 42. 0 ms-1 experiences a force of -23. A 3. 84 kg object going 42. 0 ms-1 experiences a force of -23.](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-11.jpg)
![A 143 gram baseball going 39 m/s caught by the catcher. In stopping, the A 143 gram baseball going 39 m/s caught by the catcher. In stopping, the](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-12.jpg)
![A 4. 2 g rifle bullet reaches a speed of 890 m/s in a A 4. 2 g rifle bullet reaches a speed of 890 m/s in a](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-13.jpg)
![Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-14.jpg)
![Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-15.jpg)
- Slides: 15
![Newtons Laws of motion Newton’s Laws of motion](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-1.jpg)
Newton’s Laws of motion
![Newtons Three Laws of motion 1 An object at rest will remain at rest Newton’s Three Laws of motion: 1. An object at rest will remain at rest,](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-2.jpg)
Newton’s Three Laws of motion: 1. An object at rest will remain at rest, an object in motion will remain in motion at a constant speed, in a straight line (constant Velocity) unless acted upon by an outside force. Inertia - the tendency of an object to resist a change in its motion. (Demos, stage sets. . . ) 2. F = ma (an outside force causes an a = F/m) 3. For every action there is an equal but opposite reaction (rockets, throwing, pushing, airplanes)
![F ma Force in Newtons N Net Force Unbalanced Mass in F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-3.jpg)
F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in kg Force (Kilograms) grams/1000 = kg lbs/2. 2 (on earth) Acceleration in m/s/s a = v/ t v = u + at s = ut + 1/2 at 2 v 2 = u 2 + 2 as
![Example What force causes a 4 0 kg object to accelerate at 6 0 Example: What force causes a 4. 0 kg object to accelerate at 6. 0](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-4.jpg)
Example: What force causes a 4. 0 kg object to accelerate at 6. 0 m/s/s? F = (4. 0 kg)(6. 0 m/s/s) = 24 kg m/s/s or 24 Newtons or 24 N F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in kg Force (Kilograms) grams/1000 = kg Acceleration in m/s/s a = v/ t v = u + at s = ut + 1/2 at 2 v 2 = u 2 + 2 as
![Example A 2 1 kg hammer accelerates from rest under the influence of a Example: A 2. 1 kg hammer accelerates from rest under the influence of a](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-5.jpg)
Example: A 2. 1 kg hammer accelerates from rest under the influence of a net force of 120 N. What is its final velocity if the force is exerted over a distance of 78 cm a = f/m; a = 57. 14 m/s/s; v 2 = u 2 + 2 as; v =9. 44 m/s F = ma Force - in Newtons (N) Net Force. Unbalanced Mass - in kg Force (Kilograms) grams/1000 = kg Acceleration in m/s/s a = v/ t v = u + at s = ut + 1/2 at 2 v 2 = u 2 + 2 as
![Whiteboards Newtons Second Law 12345 TOC Whiteboards: Newton’s Second Law 1|2|3|4|5 TOC](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-6.jpg)
Whiteboards: Newton’s Second Law 1|2|3|4|5 TOC
![What unbalanced force causes a 892 g object to accelerate at 9 81 mss What unbalanced force causes a 892 g object to accelerate at -9. 81 m/s/s?](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-7.jpg)
What unbalanced force causes a 892 g object to accelerate at -9. 81 m/s/s? m = 892 g/1000 =. 892 kg F = ma F = (. 892 kg)(-9. 81 m/s/s) = -8. 75 N W
![What is the acceleration of a 12 kg object if you exert 37 N What is the acceleration of a 12 kg object if you exert 37 N](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-8.jpg)
What is the acceleration of a 12 kg object if you exert 37 N of unbalanced force on it? F = ma, a = F/m = (37 N)/(12 kg) = 3. 083 ms-2 = 3. 1 ms-2 N/kg = (kg m/s/s)/kg = m/s/s 3. 1 m/s/s W
![What is the mass of an object if when there is a 128 N What is the mass of an object if when there is a 128 N](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-9.jpg)
What is the mass of an object if when there is a 128 N net force acting on it, it accelerates at 3. 7 ms-2? F = ma, m = F/a = (128 N)/(3. 7 ms-2) = 34. 59 kg = 35 kg W
![A 16 kg object going 23 ms1 is stopped by a force in 125 A 16 kg object going 23 ms-1 is stopped by a force in. 125](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-10.jpg)
A 16 kg object going 23 ms-1 is stopped by a force in. 125 s. What force? v = u + at, F = ma v = u + at, a = (v-u)/t = (0 - 23 ms-1)/(. 125 s) = -184 ms-2 F = ma = (16 kg)(-184 ms-2) = -2944 N = -2900 N W
![A 3 84 kg object going 42 0 ms1 experiences a force of 23 A 3. 84 kg object going 42. 0 ms-1 experiences a force of -23.](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-11.jpg)
A 3. 84 kg object going 42. 0 ms-1 experiences a force of -23. 5 N for 2. 60 s. What is the final velocity of the object? F = ma v = u + at F = ma, a = F/m = (-23. 5 N)/(3. 84 kg) = -6. 1198 ms-2 v = u + at = 42. 0 ms-1 + (-6. 1198 ms-2)(2. 60 s) = 26. 1 ms-1 26. 1 m/s W
![A 143 gram baseball going 39 ms caught by the catcher In stopping the A 143 gram baseball going 39 m/s caught by the catcher. In stopping, the](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-12.jpg)
A 143 gram baseball going 39 m/s caught by the catcher. In stopping, the baseball travels 7. 5 cm. What is the average force exerted on the ball? F = ma vf 2 = vi 2 + 2 ax a = -10, 140 m/s/s F = ma = (. 143 kg)(-10, 140 m/s/s) = 1450. 02 N -1450 N W
![A 4 2 g rifle bullet reaches a speed of 890 ms in a A 4. 2 g rifle bullet reaches a speed of 890 m/s in a](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-13.jpg)
A 4. 2 g rifle bullet reaches a speed of 890 m/s in a distance of 61 cm. What is the average force exerted on the bullet? What is that in pounds if 4. 45 N = 1 pound? F = ma vf 2 = vi 2 + 2 ax a = 649, 262. 3 m/s/s F = ma = (. 0042 kg)(649, 262. 3 m/s/s) = 2726. 9 N +2730 N 613 lbs W
![Aristotle Science by observation Moving objects Galileo Science by experiment Rate of Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-14.jpg)
Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of fall Moving objects
![Aristotle Science by observation Moving objects Galileo Science by experiment Rate of Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of](https://slidetodoc.com/presentation_image_h/8a0f5b89bdd325a332e8c0b4d60440c8/image-15.jpg)
Aristotle - Science by observation. Moving objects Galileo - Science by experiment. Rate of fall Moving objects
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Section 3 using newtons laws