MOMENTUM
Question:
» What is the velocity of a 0.7 kg ball that has a momentum of 1.4 ?
Answer:
- [tex] \color{hotpink} \bold{2 \: m/s}[/tex]
— — — — — — — — — —
Formula:
- [tex] \underline{ \boxed{ \tt v = \frac{p}{m}}} [/tex]
where,
- v is the velocity, measured in m/s
- p is the momentum, measured in kg•m/s
- m is the mass, measured in kg
– To calculate the velocity of a momentum, divide the given momentum (in kg•m/s) by mass (in kilograms). The quotient is the velocity in m/s.
Given:
- A 0.7 kg ball that has a momentum of 1.4
Solution:
– Substitute the given mass and momentum to the formula, then solve.
- [tex] \tt \: velocity = \frac{momentum}{mass} \\ [/tex]
- [tex]\tt v = \frac{p}{m} \\ [/tex]
- [tex]\tt v = \frac{1.4}{0.7} \\ [/tex]
- [tex]\tt v = \underline{ \boxed{ \blue{ \tt2}}}[/tex]
Hence, the velocity of a 0.7 kg ball that has a momentum of 1.4 is 2 m/s.
