Question

A force acting on a body produces a constant acceleration. The equation written is as follows:

$F=Km\times \frac{(V-U)}{t}$

F- Force; K-constant;

m- mass; V- final velocity

U- initial velocity; t- time taken

a- acceleration; P- momentum

The equation can also be written as___ .

• A. F = m*p
• B. F = m*p/t
• C. F = m*a
• D. F = 2 m*a

Answer 1

The correct option is C

F = m*a

Give the body is undergoing constant acceleration.

$\frac{[V–U]}{t}$ = acceleration (As acceleration is the rate of change of velocity)

$⟹F=Kma$

The value of constant K has to be 1 to satisfy the second law of motion.

So, $F=m\times a$