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Linear motion Questions
1. A footballer kicks a ball of mass 0.6kg initially at rest using a force of 720N. If the foot was in
contact with the ball 0.1seconds, what was the take off speed of the ball?
2. A car starting from rest accelerated uniformly for 5minutes to reach 30m/s. it continues at this
speed for the next 20minutes and then decelerates uniformly to come to a stop in 10minutes.
On the axes provided, sketch the graph of the velocity against time for the motion of the car.
Linear motion Answers
1. Ft = m(V-U)
720x 0.1 = 0.6V
V = 72
0.6
= 120ms-1
2.
