Question

A scooter acquires a velocity of 36 kilometre per hour in 10 seconds just after it start it takes 20 second to stop calculate the acceleration in two cases

Answer 1

Answer:

In case 1:

u=0

v=36 = 36× 5/18= 10m/s

t=10 sec

a= v-u/t

a= 10-0/10

a = 10/10

a= 1 ms-²

In case 2:

u= 10m/s

v=0

t=20 sec

a= v-u/t

a= 0-10/20

a= -10/20

a= -1/2

a= -0.5ms-²

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