Question

two bodies A and B of masses 20 kg and 5 kg respectively which one is acted upon by a force of 4 kg if they aquire the same kinetic energy in times ta and tb then the ratio of ta/tb it is

Answer 1

Two bodies A and B have masses 20 Kg and 5 Kg respectively. Each one is acted upon by a force of 4 kg wt. If they acquire the same kinetic energy in times tᴀ and tʙ, then the ratio tᴀ/tʙ

Answer 2

K.E=(mv^2)/2
F=4N each
F1/F2 =1=v1/v2
K.E1/K.E2=(10v1^2)/(5/2v2^2)
=4
So ,ta/tb=4