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victus00 [196]
3 years ago
7

How much net force needed to accelerate a 3 kg skateboard at 5m/s?

Physics
1 answer:
emmasim [6.3K]3 years ago
6 0

Answer:

The answer is 15N!

Explanation:

F=MA (Force = Mass * Acceleration).

F = 3 * 5 which is 15 N (newtons).

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Answer:

A=8.7\times 10^{-7}m^{2}

Explanation:

We have given power =40 W but only 10% of this power is used so actual power P=\frac{40\times 10}{100}=4 W

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Ina shoots a large marble (Marble A, mass: 0.08 kg) at a smaller marble (Marble B, mass: 0.05 kg) that is sitting still. Marble
stich3 [128]

From the calculations, the final momentum of B is 8.16 m/s

<h3>What is conservation of linear momentum?</h3>

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This implies that;

MaUa + MbUb = MaVa + MaVa

Substituting values;

(0.08 kg * 0.5 m/s) + (0.05 kg * 0 m/s) = (0.08 kg * −0.1 m/s) + (0.05 kg * v)

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