What is the mass of a baseball that has a kinetic energy of 100 J and travel at 5 m/s

Question

Physics

Marilyn Johns

11 November, 14:50

What is the mass of a baseball that has a kinetic energy of 100 J and travel at 5 m/s

+1

Answers (2)

Know the Answer?

Kasey Arroyo · Answer 1

Mass = kinetic energy * 2 / velocity^2

=> mass = 100 * 2 / 5^2

= 200 / 25 = 8 kg

in short, your answer is 8 kg

Oswaldo Peters · Answer 2

K. E = 1/2 mv²

So, m = K ... E*2/v²

∴ m = 100 * 2 / 25

m=8 Js²/m

As, the unit of K. E and velocities are in SI so unit of mass would also be in SI i. e, kg

So, m=8 kg