Question

A) two bodies of equal masses move with the uniform velocities v and 3v respectively. find the , ratio of their kinetic energies.b) what is the work done in the situation shown below ?
5 points
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Answer 1

Answer:

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 =KineticenergiesofsecondbodyKineticenergiesoffirstbody

                                                                         =21m(3v)221mv2=29mv221mv2

                                                                         =91

The ratio of the kinetic energies =1:9