Question

The kinetic energy of a body decreases by 36 the decrease in its momentum is

Answer 1

36% decrease in KE => Velocity is decreased by 20%. Since Momentum is directly proportional to velocity, momentum will decrease by 20%.

Answer 2

Answer:

The kinetic energy of a body decreases by 36 , momentum will be decreases by 36.

Explanation:

Given that,

The kinetic energy of a body decreases by 36

Kinetic energy :

The kinetic energy is equal to the half of the product of mass and square of the velocity of the object.

In mathematically term,

$K.E=\dfrac{1}{2}mv^2$

Momentum :

Momentum is product of the mass and velocity of the object.

In mathematically term,

$P= mv$

Here, mass of the object is constant.

So, Momentum is directly proportional to the velocity.

Hence, The kinetic energy of a body decreases by 36 , momentum will be decreases by 36.