Question

What will be the change in kinetic energy of the body of mass m with an initial velocity u, when the momentum of the body increased by 20%?​

Answer 1

Answer:

unless the momentum increase was due to an increase in mass or an increase in both mass and velocity. This is not really a rare possibility, for example, the moon’s origin is widely believed to be the collision of the infant earth by a mars-size planet, with the debris thrown up later coalescing into the moon. Thus the earth’s momentum increased two ways, by the other planet’s greater speed, and by the increase in mass from two bodies becoming one. Let’s say that in this case earth’s momentum did increase by 20% but it was half from mass and half from speed (9.54% from each with the velocity vectors of both bodies parallel), then the increase in kinetic energy would be (m1/m0)*(v1/v0)^2 = 1.0954 * 1.2 = 1.3145 instead of 1.44.

Answer 2

Answer:

hwy why you give irrelivant answer

Explanation:

gg