If the power of an engine is known and the amount of time that the engine exerts this power is known, what can be calculated?
1 answer:
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Answer:
The object will travel at the speed of 16 m/s.
Explanation:
Given
- Mass m = 4.0 kg
- Momentum p = 64 kgm/s
To determine
How fast is the object traveling?
<u>Important Tip:</u>
The product of the mass and velocity of an object — momentum.
Using the formula
where
- m = mass
- v = velcity
- p = momentum
Thus, in order to determine the speed of the object, all we need to do is to substitute p = 64 and m = 4 in the formula
switch the equation
divide both sides by 4
simplify
m/s
Therefore, the object will travel at the speed of 16 m/s.