Question

With what velocity should a student of
mass 60 kg run so that his kinetic energy
becomes 270 J?
​

Answer 1

Answer: 3 m/s²

Explanation: We know the formula of kinetic energy is = 1/2 x m x v²

Where m=mass of object

v=velocity of object

Now we know the mass and the final kinetic energy...

So ..

Putting in above formula we have,

1/2 x m x v²= 270

1/2 x 60 x v²= 270

v²=9

v=3

So velocity of the object should be 3m/s²

....

Hope it helps!!