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never [62]
3 years ago
15

When you push a child on a swing, you are doing work on the child because _____.

Physics
2 answers:
max2010maxim [7]3 years ago
8 0

ur answer is A or also known as

When you push a child on a swing, you are doing work on the child because  you are pushing against the force of gravity

hope this helps :)

julsineya [31]3 years ago
3 0

Thinking it’s A! Sorry if I’m wrong! :)

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The magnitude of each force is 208 N the force on the right is applied at an angle 36° and the mass of the block is 17 kg the co
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Answer:

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Explanation:

According to Newtons second law of motion

\sm F_x = ma_x\\F_m - F_f = ma_x\\mgsin \theta - \mu R mgcos \theta = ma_x\\

Given

Mass m = 17kg

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theta = 36 degrees

g = 9.8m/s²

a is the acceleration

Substitute

208 - 0.148(17)(9.8)cos 36 = 17a

208 - 24.6568cos36 = 17a

208 - 19.9478 = 17a

188.05 = 17a

a = 188.05/17

a = 11.06m/s²

<em>Hence the  the magnitude of the resulting acceleration is 11.06m/s²</em>

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mrs_skeptik [129]

Answer:

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m = 8.5 kg

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