Question

A car is travelling at a steady velocity of 28 m/s. It accelerates for 6 seconds to overtake a van. Its new velocity is 32.5 m/s. Calculate the acceleration of the car.

Answer 1

0.75 m/s

Step-by-step explanation:

Acceleration = change in velocity / time = (32.5 m/s – 28 m/s) / 6 s = 0.75 m/s2

Answer 2

Answer: The acceleration of the car is
`0.75m/s^2`

Step-by-step explanation:

To calculate the acceleration of the car, we use first equation of motion:

`v=u+at`

where,

v = final velocity of the car = 32.5 m/s

u = initial velocity of the car = 28 m/s

a = acceleration of the car = ?

t = time taken = 6 sec

Putting values in above equation, we get:

`32.5=28+(a* 6)\\\\a=(32.5-28)/(6)\\\\a=0.75m/s^2`

Hence, the acceleration of the car is
`0.75m/s^2`