KUS objectives BAT Understand Newtons 3 laws BAT

KUS objectives BAT Understand Newtons 3 laws BAT Solve problems using Newtons 2 nd law BAT solve problems with moving objects using the suvat model Starter:

WB 9 A stone of mass 0. 5 kg is released from rest on the surface of the water in the well. Suggest a model i) The stone is modelled as a particle ii) acceleration g is constant iii) resistance force due to the water is constant iv) There are no other forces A stone of mass 0. 5 kg is released from rest on the surface of the water in the well. It takes 2 seconds to reach the bottom of the well. Given that the water exerts a constant resistance of 2 N, find the depth of the well

WB 9 solution A stone of mass 0. 5 kg is released from rest on the surface of the water in the well. It takes 2 seconds to reach the bottom of the well. Given that the water exerts a constant resistance of 2 N, find the depth of the well R Draw a diagram: a W 2 nd Law

WB 10 Car A car travels a distance of 32 m along a straight road while uniformly accelerating from rest to 16 ms-1. By modelling the car as a particle find its acceleration. Given that the mass of the car is 640 Kg, find the magnitude of the accelerating force.

WB 11 A car of mass 500 kg travelling at a constant speed of 25 ms-1 reaches a slope inclined at 300 to the horizontal. The resistance forces on the car travelling up the slope total 300 N. The driver takes their foot off the acceleration pedal at the start of the slope Find the distance travelled by the car before it comes to rest R 300 Resultant Force down slope 500 g deceleration

KUS objectives Understand Newtons 3 laws Solve problems using Newtons 2 nd law solve problems with moving objects using suvat model self-assess One thing learned is – One thing to improve is –

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