Question

An object has a velocity of 8 m/s and a kinetic energy of 480 J. What is the mass of the object? (Formula: )

7.5 kg

Answer 1

15kg is the mass of the object

Answer 2

Kinetic energy =

$\frac{1}{2} m {v}^{2}$

480 = 1/2 × m ×

${8}^{2}$

480 = 1/2 × m × 64

480 × 2 = m × 64

960 = 64 × m

m = 960/64

m = 15 kg...
Thus mass of the object is 15 kg ...