Question

The speed of a vehicle of mass 500 kg is 18 km/h find its kinetic energy ​

Answer 1

Answer:

Kinetic energy =1 mv²

2

= 1/2 x 500 x (18)²

= 81000

= 81 kilo joule

Answer 2

$\bold{Answer\;:-}$

• Mass of the vehicle, m = 500 kg

• Speed of the vehicle, v = 18 km/h = 5 m/s

• Kinetic energy, KE = ?

Therefore, KE = ½mv²

• KE = ½*500*(5)²

• KE = 6250 kg-m/s²

$\bold{Hope\;it \; helps\;!}$