Question

The kinetic energy of an object of mass m moving with a velocity of 5 m per second is 25j what will be its kinetic energy when its velocity is doubled?What will be its kinetic energy when its velocity is increased 3 times?

Answer 1

m=25/(5)^2

m=1

when it's velocity is doubled

k=1x(10)^2

=100 J

when it's velocity is increased 3

times...

k=1x(15)^2

=225J

...

hope this was helpful...