Question

If the momentum of an object is increased by 10pecent then its kinetic energy will increase by?

Answer 1

Answer:

option 2

kinetic energy increases by 21%

kinetic energy(K)=(momentum)^2/2*mass

given momentum is increased by 10%

so let the new momentum be 1.1p=p1

let new kinetic energy=k1

k1/k=(p1)^2-(p)/p*100=1.21p^2-p^2/p^2*100

=.21p^2/p^2*100

=21%

Explanation: hope it helps...!!!

Answer 2

Answer:

i guess it is 20%

Explanation:

p is directly proportional to v as mass in this whole scenario would remain same

k is directly proportional to v^2 as 1/2*m would remain constant

if v is increased by 10% then v^2 will increase by 20 %

as v^2 would be 10^2

and in directly proportional sign u multiply 10 by 2 to get % change

therefore 10*2 would be 20

hope this helps