Question

starting from rest ,ravi paddles his cycle to attain a Velocity of 6m/s in 30 second then he applies break such that the Velocity of the cycle come down to 4m/s in next 5second calculate the acceleration an of cycle in both cases

Answer 1

A = v - u/t

 = 6 - 0/30

  = 6 / 30

 = 0.2m/s*s

A = v - u / t

 = 4 - 6 / 5

 = -2 / 5

  = -0.4m/s*s