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Elena L [17]
2 years ago
8

I can't seem to get the right angular acceleration and also not sure how to do part b. Help will be much appreciated.

Physics
1 answer:
Tcecarenko [31]2 years ago
8 0

Answer:It’s 5 I believe

Explanation: it says to round to the nearest thousandths, so it’ll be 5.

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When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20 below the horizontal, th
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Answer:

Option E is correct 310N

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Given that the force used to push the crate is F = 200N

The force directed 20° below the horizontal

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Check attachment. For free body diagram and better understanding

Using newton second law along the vertical axis since we want to find the normal force

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The normal force is approximately 310 N to the nearest ten

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2 years ago
Why do the golf ball have dimples?
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We are only concerned about what it happens on the horizontal axis, so there are two forces acting on the cart+child system: the force F of the man pushing it, and the frictional force F_f acting in the opposite direction. So Newton's second law can be rewritten as
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since the frictional force is 15 N and we want to achieve an acceleration of a=1.50 m/s^2, we can substitute these values to find what is the force the man needs:
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