Question

Find the mass of a car that is traveling at a velocity of 60 m/s north. the car has 5040000 J of kinetic energy

Answer 1

Answer: The mass of the given car is found to be 2800kg.

Explanation:
Given:
velocity of the car- 60m/s
Kinetic energy of the car- 5040000J
Kinetic energy= 1/2mv2
Therefore,
m= K.E × 2/v2
m= 5040000×2/ 60× 60
Hence
m= 1400×2= 2800kg
So, the mass of the given car is 2800kg.