Question

A beach ball is rolling in a straight line toward you at a speed of 0.5 m/s. Its momentum is 0.25 kg*m/s. What is the mass of the beach ball?

Answer 1

Explanation:

The speed of the beach ball is

v

=

0.5

m

/

s

.

The momentum of the beach ball is

P

=

0.25

k

g

⋅

m

/

s

.

The expression for the mass of the beach ball is given as,

P

=

m

×

v

Substitute values in the above expression.

0.25

=

m

×

0.5

m

=

0.5

k

g

Thus, the mass of the beach ball is

0.5

k

g

.