Question

a scooterist starting from rest attains a velocity of 10m/sec after 10sec ,find the acceleration

Answer 1

the scooterist is starting from rest so its initial velocity is 0
u=0
v=10
t=10
a=v-u/t
a=10-0/10
a=1m/sec2

Answer 2

.

: From the data given in the problem we have,

Initial velocity = u =0,

final velocity v=20 m/sec,

Time of journey t=4sec,

Acceleration a =  = = 5 

Displacement S = ut +  = 0 (4)+

S = 40