Question

A car of mass 120kg is traveling at 20 meter/ second. Calculate The kinetic energy of a vehicle.

Answer 1

Given,

Mass = 120kg(m)

Speed = 20m/s(v)

Now, we know that=>

Kinetic Energy= (1/2)× m×(v^2)

=>K.E = 1/2× 120× 20 × 20

=>K.E = 2400 × 10

=>K.E = 24000Joules.

Hence the kinetic energy of the vehicle is 24000joules or 2.4 × 10^4 J or 240Kj.

Remember

1)To find kinetic energy of any moving body

=>1/2 × mass × (velocity)^2

=>1/2 × m×(v^2)

2)To find potential energy of an body

=>mass × Gravitational acceleration of earth × height

=>m×g×h

Answer 2

A car mass 120 kg

velocity 20 m/s

kinetic energy=1/2mv²

1/2×120×20^2=24000 plz mark on brain list