Question

5.
A body of mass 200g moves with the velocity of 20 m/s. The kinetic ener:
will be
?
(a) 30 Joules
(b) 50 Joules
(c) 40 Joules
(d) 20 Joules​

Answer 1

Answer:

(c) 40 Joules

Explanation:

Given:

mass=200grams------kg

200/1000=0.2kg

velocity =20 m/s

As we know,

Kinetic energy=1/2×mass×velocity×velocity

K.E=1/2×0.2×20×20 = 40 Joules

Hope it helps!