Question

If momentum of an object is increased by 10%then it's ke will increase by

Answer 1

Answer:

ke will increase by 21%

Explanation:

momentum is product of mass and velocity =mv

Kinetic energy = 1/2 mv^2

= 1/2 momentum^2/m

assume mass is constant

now

ke = a.momentum^2 (.5/m taken as contant a)

now momentum increased as 1.1 mv

ke will increase as square of 1.1

i.e. ke will increase as 1.21ke that is by 21%

Answer 2

Answer:increased by 21%

Explanation:

Always use below given formula here

P^2/2m=1/2mv^2

Assume initial momentum be 100 and 10% increased so 110