Question

What is the mass of a stone moving at a speed of 15 meters/second and having a momentum of 7.5 kilogram·meters/second?

A.
0.5 kilograms
B.
1.5 kilograms
C.
11 kilograms
D.
1.1 × 102 kilograms

Answer 1

The formula for this is;

p = m × v

where, p = momentum

m = mass of object

v = velocity of object

p = 7.5 x 15

To calculate the mass of the stone we go in this direction > \[m = \frac{ p }{ v} = \frac{ 7.5kgm/s }{ 15m/s} = 0.5kg\]

Answer 2

So your answer would be 0.5kg