Chapter 2, Problem 46R

To determine

To identify: the quantity that must cause the acceleration when a car moving in constant speed.

Answer to Problem 46R

The change in velocity is called acceleration.

Explanation of Solution

Introduction:

It can be said that an object which experience change in the magnitude or direction of the vector velocity is accelerating.

When a car is moving in a constant speed and this speed is increasing time to time than it is called acceleration since the acceleration is called the rate of velocity change and it is given by

  $a=\frac{dv}{dt}$ .

Conclusion:

Hence, when the change in velocity occurs, then it is known as acceleration.