Question

How to solve for speed if you have mass and kinetic energy. Please give detailed explanation.

Answer 1

KE = 0.5 x mv2

500 J = 0.5 x 30 x v2

Multiply mass by 0.5: 0.5 x 30 = 15.

Divide kinetic energy by the product: 500/15 = 33.33.

Square root to find velocity: 5.77 m/s.