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BigorU [14]
2 years ago
12

Mrs. Fatima has a a small sports car that she uses to drop her kids off from school that has a mass of 5000 kg. Mr. Zaid drives

a truck with a mass of 4200 kg. If the two vehicles are travelling down the road, side by side, at a speed of 75 km/hr, which one will have the most momentum? Explain *
Physics
1 answer:
sertanlavr [38]2 years ago
4 0

\textbf{Use equation of momentum}

p=mv

\text{momentum\ =\ mass x velocity}

\textbf{Substitute in the values}

5000 \times 75 = 375,000 \text{\ kg\ km/hr}

4200 \times 75 = 315,000 \text{\ kg\ km/hr}

\textbf{The\ small\ sports\ car\ will\ have\ the\ most\ momentum.}

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1: is A

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Explanation:

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620 J of heat is added to the cylinder of an engine, which causes the gas inside to expand. As a result, the piston of the engin
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<u>400</u> J work is done BY the engine.

The internal energy of the gas is <u>620</u> J

Explanation:

The given information are;

The heat added to the cylinder = 620 J

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The distance over which the force moves (the piston) = 5.0 cm = 0.05 m

The work done (by the engine) = Force × Distance = 8,000 N × 0.05 m = 400 J

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