Question 30: Laws of Motion

Question

The motion of a particle of mass $$m$$ is described by $$y = ut + g{t^2}$$. The force acting on the particle will be

Accepted Answer

Given, $$y = ut + g{t^2}$$
Comparing with equation of motion $$y = ut + {1 \over 2}a{t^2}$$
we get, $$a = 2g$$
$$	herefore$$ Force $$ = m 	imes a = m 	imes 2g = 2mg$$

Answer

zero

Answer

$$4~mg$$

Answer

$$3~mg$$

Answer

$$2~mg$$

Laws of Motion

The motion of a particle of mass $m is described by y = ut + g{t^2}$. The force acting on the particle will be

Choose the correct answer: