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.

Question

asked May 12, 2021 177k views

2 Answers

DCNYAM · Answer 1 · 2021-05-13T22:00:58+0000

Answer:

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.