Hi. Need an expert to answer these questions. Please answer all of them. Answer

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Hi. Need an expert to answer these questions. Please answer all of them.

Answer them correctly.

Please give me the answer with units and as the question wants and I just want the final answer. Be aware that I have to put the final answer in the rectangle that is under each the question and it will be corrected by a WebAssign system so please be sure to write the final answer correctly with the unit and circle it, please. Thanks!

Make it great to get a positive feedback!

Need it in 2 hours please!

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Explanation / Answer

1.Since the blocks move with constant speed and mass of box B is less than that of mass A, the vertical force on B must be greater than that on A. Also the fricitional forces on both the blocks are the same.

Therefore the magnitudes of the forces are in the order FNBW=FNBA>FNAB>FNAH in this case.

2.Since the blocks move upwards with the same acceleration and the mass of box A is greater than that of box B, force on A must be greater than that on B since the frictional forces on both blocks are the same.

Therefore, we have FNAH=FNAB>FNBA=FNBW.

3.In this case the force acts downwards and using the same argument as before in reverse we must have again

FNAH=FNAB>FNBA=FNBW .

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