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Georgia [21]
2 years ago
13

A 20 kg shopping cart moving at a velocity of 0.5 m/s collides with a store wall and

Physics
1 answer:
MAXImum [283]2 years ago
7 0

Answer:

<h2>10 kg.m/s</h2>

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 20 × 0.5

We have the final answer as

<h3>10 kg.m/s</h3>

Hope this helps you

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You need to figure out t4 to know the tension in the string.

Since the whole thing is not moving t1 + t2 + t3 = t4.

torque t = r * F * sinФ = distance from axis of rotation * force * sin (∡ between r and F)

t1 =3.2 * 44g 
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The t4 also is given by:

t4 = r * T * sin Ф

r = 7
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3 years ago
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2 years ago
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Answer:

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To find the amount of heat released;

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Answer:

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