Solving Net-Force Question: 20 kg Crate, F = 200 N

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AI Thread Summary
To solve for the upward acceleration of a 20 kg crate lifted by a 200 N force, the net force must be calculated by considering both the lifting force and the weight of the crate. The weight of the crate is 196 N (20 kg x 9.8 m/s²). The net force acting on the crate is 200 N - 196 N = 4 N. Using the formula a = F/m, the acceleration is found to be 4 N / 20 kg = 0.2 m/s². Understanding the forces acting on the crate is crucial for accurately determining its acceleration.
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Homework Statement



A 20 kg crate is lifted by an upward force of 200 N. The crate's upward acceleration is:


Homework Equations



F = ma

a = F ÷ m

The Attempt at a Solution



I can't for the life of me find the answer to this question (which is supposedly .2 m/s^2). I don't know how to get an answer like that, the best I can come up with is 10 m/s^2 using the formula above. Help will be appreciated, thank you.
 
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What forces act on the crate?

ehild
 
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