A 44 kg block of ice slides down a frictionless incline 1.5 m long and 0.82 m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed. (a) Find the magnitude of the worker's force. N How much work is done on the block by the following forces? (Include the sign of the value in your answer.) (b) the worker's force J (c) the gravitational force on the block...
Starting from rest a 5.5 kg block slides 2.5 m down a rough 30 degree incline. The coefficient of kinetic friction between the block and the incline is uk =.436. A. Determine the work done by the force of gravity. B. Determine the work done by the friction force between the block and incline. C. Determine the work done by the normal force. Show all work and free body diagrams
A 280 kg piano slides 4.4 m down a 30° incline (with respect to the horizontal direction) and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40. (a) Calculate the force exerted by the man. ______ N (b) Calculate the work done by the man on the piano. _______ J (c) Calculate the work done by the friction force. _______ J (d) What is...
3. Starting from rest, a 5.20-kg block slides 1.60 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μk = 0.436. (a) Determine the work done by the force of gravity. J (b) Determine the work done by the friction force between block and incline. J (c) Determine the work done by the normal force. J (d) Qualitatively, how would the answers change if a shorter ramp at a steeper angle...
A 3.00-kg block is moved up a 37-degree incline by a constant horizontal force of 40.0 N. The coefficient of kinetic friction is 0.10, and the block is displaced 2.00 m up the incline. Note: The applied force is not parallel to the incline. Calculate the work done by gravity and the work done by friction.
A 330 kg piano slides 3.8 m down a 32 ∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1)). The effective coefficient of kinetic friction is 0.39. A) Calculate the force exerted by the man. Express your answer using two significant figures. B) Calculate the work done by the man on the piano. Express your answer using two significant figures. C) Calculate the work done...
A 1.16 kg block slides down a 12.0 m long 31.0° incline at constant velocity. How much work is done by friction?
A 300-kg piano slides 3.5 m down a 23 ∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline.(Figure 1) Determine the force exerted by the man. Determine the work done by the man on the piano. Determine the work done by the force of gravity. Determine the net work done on the piano. Ignore friction.
7. A block of ice of mass m = 12 kg slides dom a frictionlons ramp at an angle 8 = 50° while an ice worker pulls on the block (via a rope) with & constant force that has a magnitude F 50N and is directed up the ramp. While this is happening the block slides down the incline through & distanced=0.50 m. Givens: m = 12 kg, F, -50N, d =0.50m, 8 = 50 g 9.8m/s? (a) Draw a...
A 350 kg piano slides 2.5 m down a 25 ∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1)). Ignore friction. A) Determine the force exerted by the man. B) Determine the work done on the piano by the man. C) Determine the work done on the piano by the force of gravity. D) Determine the net work done on the piano. A novice skier,...