Question

(1) A body of mass 0.05 kg is moving with uniform velocity of 5 m/s. Calculate the kinetic energy
possessed by a body.
[2]
e) Draw a neat diagram of a concave lens when object is anywhere between its optical center and
infinity
[2]​

Answer 1

Answer:

1)  125 KJ

Explanation:

given , mass of the body =0.05

          velocity =5m/s

    KE = 1/2mv²

so,   1/2 × 0.05 ×5

   =  1/2 × 0.25

   =0.125 KJ