A cyclist is travelling at 15 m/s. She applies brakes so that she does – InterviewSolution

1.

A cyclist is travelling at 15 m/s. She applies brakes so that she does not collide with a wall 18 m away. What deceleration must she have?

Answer»

Initial velocity, u = 15 m/s

Final velocity, v = 0 m/s

Distance, s = 18m

Acceleration, a = ?

Deceleration, v² – u ²= 2as = 6.25 m/s²

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