utets13 q142

0. A body having mass 2.0 kg is dropped from height 10 m. When it reaches on Earth, its kinetic energy will be (g= 9.8 m / S²)

Answer
Comment
Array

Option : A
Explanation : (A) Kinetic energy = 1/2 mv²
Here v² = u² + 2as
= 0 + 2gh
= 2 x 9.8 x 10 = 196
Now K.E = 1/2 x 2 x 196 = 196 Joule

Forgot your password?

I agree with the Terms.