Question

What is the mass of an object with a kinetic energy of 200,000 J and a velocity of 40 m/s?

Round your answer, if necessary, to the nearest hundredth.

Answer 1

250 kg

Explanation:

Kinetic energy = 1/2mv^2 where K. E. is in Joules, m in kilograms and y in metres per second.

200000 = 1/2 m 40^2

200000 = 800m

m = 250 kg.

Answer 2

Step-by-step explanation:250kg