In Exercise 2, if the 35-N force acted downward at an angle of 40° relative to the horizontal, what would be the acceleration in this case?
Answer to relevant QuestionsIn a pole-sliding game among friends, a 90-kg man makes a total vertical drop of 7.0 m while gripping the pole which exerts and upward force (call it Fp) on him. Starting from rest and sliding with a constant acceleration, ...(a) As a weightlifter lifts a barbell from the floor in the “clean” procedure (Fig. 5.25a), has he done work? Why or why not? (b) In raising the barbell above his head in the “jerk” procedure, is he doing work? ...(a) Does efficiency describe how fast work is done? Explain. (b) Does a more powerful machine always per-form more work than a less powerful one? Explain. A crate is dragged 3.0 m along a rough floor with a constant velocity by a worker applying a force of 500 N to a rope at an angle of to the horizontal. (a) How many forces are acting on the crate? (b) How much work does ...If it takes 400 J of work to stretch a spring 8.00 cm, what is the spring constant?
Post your question