Question

Mass times the rate of change of velocity of an object is equal to .

• A. momentum
• B. force
• C. acceleration

Answer 1

The correct option is B force

Let the force be $F$, mass be $m$, $u$ be the initial velocity, $v$ be the final velocity, $t$ be the time taken and a be the acceleration.
We know, $F=ma$ and $a=\frac{(v-u)}{t}$
Therefore, we can write $F=m\times \frac{(v-u)}{t}$
where, $\frac{(v-u)}{t}$ is the rate of change of velocity.
Therefore mass times rate of change of velocity gives force.