Question

an object is moving with a speed of 35 m/s and has a kinetic energy of 1500 J, what is the mass of the object?

Answer 1

You'd use the equation kinetic energy=mass*0.5*speed^2
So you'd rearrange this to get mass =kinetic energy /0.5 *speed^2
Which is mass= 1500J/0.5*35^2
=2.44897959183673469........kg