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 rope is being pulled across a pulley of radius 4 inches at a rate of...
30 Two pulleys, one with a radius of 13 inches and the other with a radius of 5 inches, are connected by a belt. If the larger pulley makes 3 revolutions per minute, how many revolutions per minute does the smaller pulley make? Round your answer to the nearest tenth.
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the front of the boat, which is 7 feet below the level of the pulley. If the rope is pulled through the pulley at a rate of 10 ft/min, at what rate will the boat be approaching the dock when 90 ft of rope is out? The boat will be approaching the dock at________ft/min.
A boat is pulled into a dock by a rope attached to the bow of the boat an passing through the pulley on the deck that is 1m high than the bow of the boat ,if the rope is pulled im at the rate of 0.8m/s how fast does the boat approach the deck when it is 10m from the dock?
How much rotational energy is stored in a 7.0 kg object being swung by a rope in a 1.0 m radius circle at a rate of 2 revolutions per second?
A sled is being pulled across rough snow by a rope at an angle of 20° to the horizontal. The sled has a mass of 31 kg and the passenger has a mass of 22 kg. The sled is moving at a steady 0.63 m/s. The force on the rope is 65 N. A. Draw a free body diagram for the sled and passenger as one thing. B. What is the normal force on the sled? C. What is the...
A 15.0 kg box is being pulled across a rough floor at a constant acceleration of 3.00 m/s^2 by means of a rope. The rope makes an angle of 34.0 degrees above the horizontal. The coefficient of kinetic friction between the floor and the box is u=0.250. Calculate the magnitude of the tension in the rope?
A 1.5kg block is connected by a rope across a 50cm -diameter, 2.0kg , frictionless pulley, as shown in the figure. A constant 10N tension is applied to the other end of the rope. (Figure 1) Starting from rest, how long does it take the block to move 30cm ? Express your answer using two significant figures. A 1.5kg block is connected by a rope across a 50cm -diameter, 2.0kg , frictionless pulley, as shown in the figure. A constant...
Two boxes are connected to a rope, and the rope is hung over a pulley connected to the ceiling, as shown in the figure below.The masses of the boxes are m1=18.0 kg and m2=12.0 kg, the mass of the pulley is M=5.00 kg, and the radius of the pulley is R=0.300 m. Box m2 is initially on the floor, and box m1 is initially 4.70 m above the floor when it is released from rest. The pulley's axis has negligible...
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?
The radius of a right circular cone is increasing at a rate of 10 inches per minute, and the height is decreasing at a rate of 4 inches per minute. What are the rates of change of the volume and the radius is 15 inches and the height is 45 inches? rate of change of the volume 13194.69 in3/min rate of change of the surface area 2402.85| in2/min