Question

A car with a mass of 20000 kg is travelling at 10m.s calculate its kinetic energy of its speed increase to 20m.s

Answer 1

Answer:

Kinetic energy = 10^6 J

Explanation:

K.E = 1/1 m(v)^2

K.E = 1/2 ×mass ×(final velocity - initial velocity)^2

= 1/2 × 20000 ×( 20-10)^2

= 10000 × (10)^2

= 1000000 J

= 10^6 J