Question

The kinetic energy of a body of mass 10kg moving with a velocity of 2m/s is

Answer 1

Answer:

20kgm/s

Explanation:

K.E = 1/2mv^2

= 1/2×10×(2)^2

= 1/2×10×4

= 40/2

so, K.E= 20kgm/s

Answer 2

Answer:

20 J

Explanation:

Given:

m = 10kg

v = 2m/s

Solution:

KE = 1/2 mv^2

KE = 1/2 × 10 × (2)^2

KE = 1/2 × 10 × 4

KE = 1/2 × 40

KE = 20J