Motion Velocity Acceleration Speed vs Velocity https www
- Slides: 14
Motion Velocity & Acceleration
Speed vs. Velocity • https: //www. youtube. com/watch? v=DRb 5 PSx. Jer. M
Velocity Definition • How far an object moves in a given amount of time AND the direction + • velocity = displacement / time • v = (d 2 – d 1)/ t OR Δd / t OR df - di/ t
Pulling It All Together • Back to our ant explorer! - + 5 s 0 cm 1 • • 2 3 4 5 6 7 8 Distance traveled: 7 cm Displacement: +3 cm Average speed: (7 cm) / (5 s) = 1. 4 cm/s Average velocity: (+3 cm) / (5 s) = +0. 6 cm/s 9 10
Constant Velocity Lab
Acceleration
Change in Velocity • You are at a stoplight and the light turns green so you step on the gas petal. How is the car’s speed changing? What happens to the speedometer? • You come to a stop sign and apply the brakes. How is your speed changing? What happens to the speedometer? • Acceleration- The rate of change of velocity.
A Change in velocity can be either: • A change in speed OR • A change in direction • A merry-go round is running at a constant speed. • What is happening to the velocity? Why? • Is there acceleration? Why?
Acceleration Equation acceleration= final velocity- initial velocity time a = (vf – vi) t units = m/s 2
A car traveling at 6 m/s slams on the breaks to avoid hitting a deer. The car comes to a safe stop 6 seconds after applying the breaks. What is the car’s acceleration? a = v f - vi time = 0 m/s – 6 m/s 6 seconds
A car traveling at 6 m/s accelerates to 9 m/s in 3 seconds. What is the car’s acceleration? a = v f - vi time
Positive acceleration Negative acceleration
Velocity Graphs 1. I have 2 lines representing movement plotted on a position graph. How can I tell which line is showing faster movement? 2. On a velocity line graph, how can I tell if the walker sped up? 3. On a velocity line graph I see a straight line that is flat – parallel to the bottom of the graph – what can I say about the walkers movement?
- Speed velocity and acceleration quiz
- Speed, velocity and acceleration problems
- Velocity and acceleration difference
- Speed, velocity and acceleration formula
- Speed velocity and acceleration study guide answers
- Are speed velocity and acceleration the same thing
- Speed, velocity and acceleration notes
- Is v final velocity
- Deceleration formula
- How to find centripetal acceleration
- How are linear quantities related to angular quantities
- Radial acceleration
- Linear acceleration vs tangential acceleration
- Centripetal acceleration tangential acceleration
- Hiw to calculate speed