Author Question: A man of weight Wman is standing on the second floor and is pulling on a rope to lift a box of ... (Read 80 times)

kamilo84 · **on:** Jul 28, 2018

A man of weight Wman is standing on the second floor and is pulling on a rope to lift a box of weight Wbox from the floor below. The rope, which is of negligible weight, has tension T in it, but the pull of the rope is insufficient to lift the box off the floor. What is the magnitude of the normal force that the second floor exerts on the man in this situation?
a. Wman
b. Wman + T
c. Wman + T + a nonzero portion of Wbox d. Wman + T + Wbox

Question 2

Five boys are pushing on a snowball, and each is pushing with a force of 10.0.0 N. However, each boy is pushing in a different direction. They are pushing north, northeast, east, southeast, and south. (Each boy is pushing at an angle of 45.0 relative to his neighbor.) What is the magnitude of the total force on the ball?
a. 0
b. 14.1 N
c. 24.1 N
d. 11.4 N
e. 48.3 N