Question

8. A body of mass 10 kg falls from a
50 cm. Find the kinetic energy of the body
when it just reaches the ground level (take g=10m/s2)​

Answer 1

Answer:

Kinetic energy will be 50J

Step-by-step explanation:

We know that its potential energy will covert to K.E just before touching the ground.

So just before touching the ground loss in potential energy =gain in K.E

Here h=50 cm or 0.5 m

So K.E=mgh=10×10×0.5=50 J

Answer 2

Answer:

the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2.5 kilograms?