Answered

A skateboard is rolling at a velocity of 3.0m/s with a momentum of
6.0kg.m/s. What is its mass?

Sagot :

Answer:

The mass of the skateboard rolling at a velocity of 3 m/s with a momentum of 6 kg-m/s is 2 kg.

Explanation:

Momentum is measuring a mass in a motion.

The formula for momentum is:

p=mv

where:

p is the momentum and its unit is in kg-m/s

m is the mass of the object and its unit is in kg

v is the velocity of the object and its unit is in m/s

The given data are the following:

p = 6.0 kg.m/s

v= 3.0 m/s

m=?

Solving for the mass of the skateboard:

By substituting the given data to momentum formula, we get:

p = mv

6.0 kg.m /s = m (3.0 m/s)

Dividing both side of the equation by 3.0 m/s, we get:

m = 6.0 kg.m/s / 3.0 m/s

By cancelling m/s , what is left is:

2kg

Therefore, the mass of the skateboard is . 2kg