How hard does the person have to pull to keep block moving

Reference no: EM131000318

1. In the following figure, suppose a person is trying to move a 51 kg block by pulling upward with a force F at an angle of 30^o. above the horizontal. Assume the coefficient of kinetic friction μ_k=.4.

153_A person is trying to move a block.png

a) How hard does the person have to pull to keep the block moving with constant velocity?

b) Is this easier or harder than pulling horizontally?

Reference no: EM131000318

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