A body of mass 2 kg is projected vertically | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) According to the law of conservation of energy,the speed of the body when it returns to the point of projection will be equal to the speed with wh

Vedclass · Accepted Answer

$4$

Vedclass · Answer

(C) According to the law of conservation of energy,the speed of the body when it returns to the point of projection will be equal to the speed with which it was projected.Since the body is projected upwards with a velocity $v = 2 \ m \ s^{-1}$,it will return to the ground with the same velocity $v = 2 \ m \ s^{-1}$.The kinetic energy $K$ is given by the formula $K = \frac{1}{2}mv^2$.Substituting the values $m = 2 \ kg$ and $v = 2 \ m \ s^{-1}$:$K = \frac{1}{2} 	imes 2 	imes (2)^2 = 4 \ J$.

$A$ body of mass $2 \ kg$ is projected vertically upwards with a velocity of $2 \ m \ s^{-1}$. What will be its kinetic energy in $J$ just before it hits the ground?

Similar Questions

When the mass and speed of the body are doubled,the kinetic energy of the body

$A$ body of mass $m$ moving with velocity $v$ has kinetic energy equal to $\frac{1}{2} mv^2$. This statement is valid when:

Two bodies of masses $m_1$ and $m_2$ have equal kinetic energies. If $p_1$ and $p_2$ are their respective momenta,then the ratio $p_1:p_2$ is equal to

In the non-relativistic regime,if the momentum is increased by $100\%$,the percentage increase in kinetic energy is (in $\%$)

What is the shape of the graph between the speed and kinetic energy of a body?

Vedclass Test Series

Exam Paper Generator

Online Exam Module