Question

A pitcher throws a 9 kg baseball in a straight line. Its momentum is 2.1 kg-m/s. What is the velocity of the
ball?

Answer 1

Answer:

$0.23\:\mathrm{m/s}$

Step-by-step explanation:

The momentum of an object is given by $p=mv$, where $m$ is the mass of the object and $v$ is the velocity of the object.

What we're given:

• object's mass $m$
• object's momentum $p$

Substituting given values, we can solve for $v$:

$2.1=9v,\\v=\frac{2.1}{9}\approx \boxed{0.23\:\mathrm{m/s}}$

Answer 2

Answer:

0.23 m/s

Step-by-step explanation:

hope this helps