Question

A driver increases the speed of a car from 25 m/s to 35 m/s in 5 seconds. Find the acceleration of the car.

Answer 1

Answer:

This can be found using the formula as a=vf-vi/t

Explanation:

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here,

vf=final velocity=35m/s

vi=initial velocity=25m/s

t=time=5s

a=35-25/5

a=30m/s^2

Answer 2

Answer:

2m/s²

Explanation:

v-u = at ( first equation of motion )

u is initial velocity of the vehicle

u = 25m/s

v is final velocity of vehicle

v = 35m/s

t is the time taken for changing speed

t = 5sec

a is acceleration

v-u = at

a = v- u/t

a = 35m/s-25m/s /5sec

a = 10m/s/5sec

a = 2m/s²