Question

if the speed of the body is 1/4 then what will be its kinetic energy​

Answer 1

Answer:

Kinetic energy of a body depends on its mass and its speed. Hence, ,kinetic energy will become 4 times the original kinetic energy if the speed is doubled.

have a great day

Answer 2

Answer:

$we \: have \: ke = \frac{1}{2} {mv}^{2}$

$where \: m \: is \: mass \: and \: v \: is \: velocity$

$now$

$new \: mass = m - \frac{m}{4} = \frac{3}{4} m$

$new \: velocity = 2v$

$now \: ke = \frac{1}{2} \times \frac{3}{4} m \times {2v}^{2}$

$= \frac{3 {mv}^{2} }{2} = 3k$

Explanation:

Hope this may help you....

- Tanvi.

Follow me !!