Question

A body is thrown vertically upwards with velocity 'u' and the ratio of potential & kinetic energies is 1:1 at a point 'p'.if it is projected with double the velocity,the ratio of potential & kinetic energies at the same point will be? ​

Answer 1

Answer:

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Answer 2

Answer:

Let a point where,

2

1

mv

2

=mgh

Total M.E=2mgh

Now, when v is twice

Total M.E=8mgh

Now when the ball passes through that point

K.E=8mgh−mgh =7mgh

P.E=mgh

P.E:K.E=1 : 7