Question

if velocity of a body becomes half,the kinetic energy of the body becomes

Answer 1

Answer:

❥Answer࿐

If the velocity of a body is halved, its kinetic energy becomes one fourth as kinetic energy is directly proportional to velocity squared.

Answer 2

We know the formula:

$\boxed{\sf{K.E. = \frac{1}{2} mv^{2} }}$

now, the velocity becomes ½:-

→ $\sf{ \frac{1}{2} m(\frac{v}{2})^{2} }$

→ $\sf{\frac{1}{4} (\frac{1}{2} mv^{2} ) = \frac{1}{4} (K.E.) }$

Thus, the Kinetic Energy becomes ¼.