Question

if the kinetic energy of a body is four times its Momentum its velocity is
Ans)
1)2ms
2)4ms
3)8ms
4)16ms
THE ANS IS
2)4ms
Any one can help me? ​

Answer 1

Answer:

KE=1/2*m*v^2

momentum= mv

given

KE=4momentum

1/2mv^2=4mv

so its velocity is 8m/s

u must have the wrong answer

Explanation:

Answer 2

Answer:

If the kinetic energy of a body is four times then its Momentum its velocity will be 8m/s.

Explanation:

Kinetic Energy (KE) = $\frac{1}{2}$ × m × v²

And, momentum = mv

Given that:

KE = 4 × momentum

$\frac{1}{2}$mv² = 4mv

So, velocity = 8m/s

A particle or an item that is in motion has a sort of energy called kinetic energy. An item accumulates kinetic energy when work, which involves the transfer of energy, is done on it by exerting a net force. Kinetic energy, which may be seen in the movement of an object, particle, or group of particles, is the energy of motion. Any moving item uses kinetic energy, such as a person walking, a baseball being thrown, a piece of food falling from a table, or a charged particle in an electric field. The energy that an object has as a result of motion is known as kinetic energy. Essentially, it is the energy of a moving mass.

Kinetic energy is a scalar quantity, meaning that it only supplies the magnitude and not the direction of an event. It can never be negative.