Question

A car has a velocity of 10kg, if its kinetic energy is 30j, what is its mass​

Answer 1

Respuesta:

m = 0.6 kg

Explicación:

Data:

V = 10 m/s

Ek = 30 J

m = ?

Solution:

The kinetic energy is:

Ek = m.V²/2     ....  m = 2.Ek/V²

If Ek = 30 J  and V = 10 m/s  

m = 2× 30J / (10 m/s)²

m = 0.6 kg