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Problem: A worker stands still on a roof sloped at an angle of 31° above the horizontal. He is prevented from slipping by a static frictional force of 320 N.
Part A: Find the mass of the worker.
I need help to determine the mass of the worker.
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A bullet is shot straight up into air from ground. It reaches maximum height = 757m. Calculate initial speed of bullet in m/s & using the results calculate total flight time t in seconds until the bullet reached the grou ...
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