Question

an object of mass m and velocity v has kinetic energy 200J .find the new kunetic energy if the mass of the object becomes double and velocity remains the same

Answer 1

Answer will be 100 Ke = 1/2*m*(v)^2 200 = 1/2*m*(v)^2 If mass is doubled then new ke will be 200 = 1/2*2m*(v)^2 200/2 = 1/2*m*(v)^2 100 = 1/2*m*(v)^2