Question

Starting from i stationery portion hamid pendle his bicycle to attain a velocity of 50 metre per second in 10 second then he applied the break and the bicycle search the velocity of bicycle come down to 20 metre per second calculate the acceleration of the bicycle in both the case

Answer 1

Answer:

In case 1 :

u = 0

v = 50 m/s

t = 10 sec

a = v-u / t

   = 50 / 10

   = 5 m/s²

In case 2 :

u = 50 m/s

v = 20 m/s

t = 10 sec

a = v-u / t

  = 0-50 / 10

  = -30 / 10

  = -3 m/s²