Physics, asked by cheetah32gg, 1 year ago

if the knetic enerfy of a body becomes four times of its initial value ,then ne momentum will

Answers

Answered by Rsrao
1
become twice its initial valueThe Kinetic Energy is the energy of a body or a system with respect to the motion of the bodyor of the particles in the system.

the usual expression for

K.E. = (1/2) mass . velocity^2

where m is the mass and v the velocity of the body

K.E. = (1/2) m . v^2

suppose the kinetic energy has increased to 4 times the original value.

but m= constant so v must have increased. so v must have becomes 2.v as K.E. is proportional to square of v .

therefore the momentum of the body must have changed to two times the original momentum.

as momentum of a body is defined as p = mass . velocity


cheetah32gg: how
Answered by shifnamongam
0

Answer:

Two times

Explanation:

Let P be the momentum and K be the kinetic energy

P is directly proportional to √K.

So when k increase 4 times p become 2

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