3) A piano of 600kg, is being lifted by a pulley with a mechanical advantage of 10.
a) How much force would it require for the pulley to lift the piano?
b) How much of the rope is pulled if the piano is being lifted at a constant velocity to a height of 8.4m?
3) A piano of 600kg, is being lifted by a pulley with a mechanical advantage of...
A pulley system has a mechanical advantage of 18. If one is trying to raise a piano with a mass of 380 kg at a constant velocity a distance of 2.8 meters, how many meters of the rope must be pulled?
10) A pulley system (simple ideal machine) has a mechanical advantage of 7. If someone is using this pulley system to lift a car which weighs 402 Newtons, how much force is required in Newtons?
1. Consider a pulley system with a mechanical advantage of 3 connected to a mass moving with a constant velocity. Calculate the mass of the object if the applied force is 15 N. Show your work. 2. Compare the efficiencies of single pulley systems and compound pulley systems. Which type of system is more efficient on average and why? I NEED TYPED ,WELL EXPLAINED SOLUTION FOR THESE BOTH QUESTIONS.
A 8.5-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling. (a) If the box is being lifted at a constant speed of 2.0 m/s, what is the power delivered by the person pulling on the rope? (b) If the box is lifted, at constant acceleration, from rest on the floor to a height of 1.3 m above the floor in 0.42 s, what...
Please show work!
A pulley of negligible mass is attached to a block weighing 504
N. A person uses the rope and pulley system illustrated in the
figure to lift the block at a constant velocity. The pulleys and
rope are all ideal.
F_G=____________ ?
A. Draw the free body diagram for the block. (Observe that three
are two rope segments pulling on the block.)
B. Apply Newton's first law and determine the tension in the
rope, and thus, the...
A 8.2-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling. If the box is lifted, at constant acceleration, from rest on the floor to a height of 1.8 m above the floor in 0.42 s, what average power is delivered by the person pulling on the rope? Answer in kW
A rope is being pulled across a pulley of radius 4 inches at a rate of 3 feet per second. How many revolutions per minute does the pulley make?
A 1500-kg air conditioning unit is being lifted by a crane onto the roof of a building. The unit starts on the ground and is raised straight up to a height of 12.0 m by a cable attached to the crane. The tension in the cable during the lift is 1.54 × 104 N. (Reminders: a free body diagram will probably be helpful, and work can be positive or negative.) (a) How much work is done on the air conditioning...
If the pulley is being held by a force sensor, assuming pulley and string are massless, the force would measure the combination of tension in both sides of the rope. Assume that you are lightly holding the string on top of the pulley to prevent movement. (Your finger doesn't add weight, it just holds the string still). How does the force measured change from this moment (string held still) to when the system is able to freely accelerate? Explain why.
Problem 3: The length of the rope which pass.over the pulley is constant, From the figare below, (a) Write position coordinate equation satisfying the underline (b) Determine the velocity and acceleration of block A at this instant when the cable at B is pulled down at 4 ft/s and 2 ft/s2. A