Question

bodies of equal masses with uniform velocity v and 3v respectively find the ratio of the kinetic energy​

Answer 1

The ratio of the kinetic energies =1:9.

Answer 2

Explanation:

Mass of first body =m

Velocity of the first body =v

Mass of second body =m

Velocity of second body =3v

The ratio of kinetic energies of the two bodies =

Kinetic energy of first

2

1

m(3v)

2

2

1

mv

2

=

2

9

mv

2

2

1

mv

2

=

9

1

The ratio of the kinetic energies =1:9