Question

A car is traveling at a constant velocity of 60 km/h for 4 hours.

Choose the correct statement about the acceleration of the car.
A)
The acceleration of this car is zero.
B)
The acceleration of this car is positive.
C)
The acceleration of this car is negative.
Eliminate
D)
The acceleration of this car is 15
m/s

Answer 1

Answer: Acceleration, a = 0

Explanation :

It is given that,

A car is traveling at a constant velocity of 60 km/h for 4 hours. We know that the acceleration is defined as :

`a=(v-u)/(t)`

In this case, v = u = 60 km/h

So,
`a=(60\ km/h-60\ km/h)/(4\ h)`

So, the acceleration is equal to zero.

It is clear that when an object moves with constant velocity, its acceleration is 0.

So, the correct option is (A) " The acceleration of this car is zero".

Answer 2

A car is traveling at a constant velocity of 60 km/h for 4 hours The acceleration of this car is zero.