Equations of uniformly accelerated motionEdexcel International A Level Physics: Mind map

Exam questions on Equations of uniformly accelerated motion

1. A car travelling in a straight line on a level road at 24 m s⁻¹ brakes with a constant deceleration and comes to rest after 6.0 s.
   Calculate the distance travelled by the car in the first 3.0 s of braking.2 marks
2. A ball is thrown vertically upwards from a point at ground level with an initial speed of 15 m s⁻¹. Air resistance is negligible and the acceleration of free fall is 9.81 m s⁻².
   Calculate the time taken for the ball to return to ground level.2 marks
3. A driver is travelling at 20 m s⁻¹ along a straight road. When the driver sees an obstacle there is a reaction time of 0.70 s before the brakes are applied, during which the speed stays constant. The car then decelerates uniformly at 6.0 m s⁻² until it stops or hits the obstacle.
   Calculate the distance the car travels from the moment the driver sees the obstacle until the car stops.3 marks