Question

The velocity of a car is 65 m/s and it’s mass is 2515 kg. What is it’s KE?

Answer 1

Example Problems. Kinetic Energy (KE = ½ m v2). 1) The velocity of a car is 65 m/s and its mass is 2515 kg. What is its KE? 2) If a 30 kg child were running at a rate of 9.9 m/s, what is his KE? Practice Problems. IN THIS ORDER…. Page 2: #s 6, 7, 8, 5. Potential Energy. An object can store energy as the result of its position.

Answer 2

Answer:

The KE will be 5312.9375 KJ

Explanation:

Mass of car = m = 2515 kg

Velocity of car = v = 65 m/s

Kinetic Energy = KE = ?

We know that,

KE = 1/2 mv^2   ...... (i)

By putting values in equation (i)

KE = 1/2 (2515)(65)^2

KE = 5312937.5 J

KE =  5312.9375 KJ

Hence, KE of the car will be 5312.9375 KJ.