GCSE Questions: Forces

Q11. The sketch graph shows the velocity-time graph for an object that is accelerating.

(a) How do you know from the velocity-time graph that the object is accelerating?

[1 mark]

(b) The illustration shows an athlete sprinting away from the starting blocks.

The athlete has a mass of 85 kg. The force causing the athlete to accelerate is 425 N

Calculate the acceleration of the athlete.

[3 marks]

[4 Marks TOTAL]