Question

Two bodies having same speed. The mass of one body is 4times the mass of another. What is their ratio in KE?​

Answer 1

Answer:

hi iii

Explanation:

good after noun guys

Answer 2

Answer:

1:4

Explanation:

Let their speeds be v

and let the mass of one body be m

∴mass of the second body=4m

Kinetic energy of the first body= 1/2mv²

                                                  =1/2*m*v²= mv²/2

kinetic energy of the second body= 1/2mv²

                                                         = 1/2*4m*v²

                                                         = 2mv²

thus the ratio= (mv²/2)/(2mv²)

                    = 1 : 4 (after cancelling m and v²)