Question

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

Answer 1

Answer:

$Initial velocity, u=15m/s \\ Final velocity, v=0m/s \\ Distance, s=18m \\ Acceleration, a=? \\ So, deceleration is 6.25 m/s2 .$

❣️