This question is from Mastering Physics. It asks, Instead of lifting the box str

Question

This question is from Mastering Physics. It asks, Instead of lifting the box straight up, suppose you push it upa 1.0m high ramp that makes a 30 degree angle with the horizontal,as shown in the figure. Being clever, you choose a ramp withno friction. How much force is required to push the boxstraight up the slope at a constant speed?
I have tried the formula W=Fdcos(angle), however I don't havethe force which I am looking for and I do not have the work, so howcan I use this formula. Is there another way to go aboutsolving this problem.
Thanks! Instead of lifting the box straight up, suppose you push it upa 1.0m high ramp that makes a 30 degree angle with the horizontal,as shown in the figure. Being clever, you choose a ramp withno friction. How much force is required to push the boxstraight up the slope at a constant speed?
I have tried the formula W=Fdcos(angle), however I don't havethe force which I am looking for and I do not have the work, so howcan I use this formula. Is there another way to go aboutsolving this problem.
Thanks!

Explanation / Answer

The force required to push the box is F = ma = Fapp - mgsin = 0 so Fapp = mgsin

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