Question

How fast a body of mass 50kg should run so that its kinetic energy

is 625J?
​

Answer 1

Answer:

the man should be running with a speed of 5 m/s.

Answer 2

Answer:

the body should run with the velocity of 5m/s

Explanation:

Given that-

mass-50 kg

Kinetic energy-625J

velocity-?

So,

Kinetic energy=1/2mv^2

625=1/2*50*v^2

625*2/50=v^2

25=v^2

V=✓25

V=5m/s