Question

A 10 kg ball is traveling at the same speed as a 1 kg ball. Compared to the 10 kg ball, the 1 kg ball has

Answer 1

A 10 kg ball is travelling at the same speed as a 1 kg ball. It has  1/10 the momentum when compared to the 10 kg ball

Answer: Option 2

Explanation:

If two objects travel with same speed, then the momentum can be calculated by the following,

Consider mass of 1 kg ball is $m_{1}$

               for 10 kg ball as $m_{2}$

Velocity is same for both so it is v

Momentum, $p=mass \times velocity$

Then, $p_{1}=1 \times v=v$

          $p_{2}=10 \times v=10 v$

When substituting for v as $p_{1}$, we get $p_{2}=10 p_{1}$

                                 $p_{1}=\frac{1}{10} p_{2}$

From this, we know momentum of 1 kg ball is 1/10 times that of 10 kg ball.

Answer 2

The answer is the second option, or 1/10 the same momentum.