Question

Find out the kinetic energy of a car of mass 3000 kg moving with a constant
velocity of 60 km/hr.​

Answer 1

Answer:

The kinetic energy is

=

400

k

J

Explanation:

The kinetic energy is

K

E

=

1

2

m

v

2

The mass is

m

=

2000

k

g

The velocity is

v

=

20

m

s

−

1

So,

1/2 . 2000.2² = 40000j = 400kj