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irina1246 [14]
3 years ago
7

A boat floats south on the Amazon River at a speed of 6 m/s. The boat and

Physics
1 answer:
EleoNora [17]3 years ago
7 0

Explanation:

Take south to be negative.

a. Momentum is mass times velocity.

p = mv

p = (540 kg) (-6 m/s)

p = -3240 kg m/s

p = 3240 kg m/s south

b. Impulse = change in momentum

J = Δp

Since the mass is constant:

J = mΔv

J = (540 kg) (-4 m/s − (-6 m/s))

J = 1080 kg m/s

J = 1080 kg m/s north

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Answer:

F=-18412.9N, where the minus indicates the direction is opposite to that of the throw.

Explanation:

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Since MKS stands for meter-kilogram-second and we know that:

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b)

Newton's 2nd Law tells us that F=ma, and the definition of acceleration is a=\frac{\Delta v}{\Delta t}, so we have:

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