Question

Notify Me Bookmark

A 200 -pound crate is connected to a rotating telescopic pole. Initially, the crate moves in a horizontal circle at a speed of 30 ft/s with a radius of 18 ft. If the pole retracts at a rate of 2 ft/s, find the speed of the crate when the pole has a radius of 12 ft. Also, calculate the work done by the axial force F along the pole. Neglect the dimensions of the crate and the mass of the pole.

A 200 -pound crate is connected to a rotating telescopic pole. Initially, the crate moves in a horizontal circle at a speed of 30 ft/s with a radius of 18 ft. If the pole retracts at a rate of 2 ft/s, find the speed of the crate when the pole has a radius of 12 ft. Also, calculate the work done by the axial force F along the pole. Neglect the dimensions of the crate and the mass of the pole.

Image text
A 200 -pound crate is connected to a rotating telescopic pole. Initially, the crate moves in a horizontal circle at a speed of 30 ft / s with a radius of 18 ft . If the pole retracts at a rate of 2 ft / s , find the speed of the crate when the pole has a radius of 12 ft . Also, calculate the work done by the axial force F along the pole. Neglect the dimensions of the crate and the mass of the pole.

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

A small remote-control car with a mass of 1.61 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m. (Figure 1) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Uniform circular motion in a vertical circle. Figure 1 of 1 Part A What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point A (at the bottom of the vertical circle)? Express your answer in newtons. Submit Request Answer Part B What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point B (at the top of the vertical circle)? Express your answer in newtons.A small remote-control car with a mass of 1.61 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m. (Figure 1) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Uniform circular motion in a vertical circle. Figure 1 of 1 Part A What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point A (at the bottom of the vertical circle)? Express your answer in newtons. Submit Request Answer Part B What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point B (at the top of the vertical circle)? Express your answer in newtons.
Solution
0 0

Two blocks, labeled A and B, are connected by a massless string that runs over a massless and frictionless pulley. Block A is sliding up along an inclined plane with ordinary surface friction. The string from block A runs over the pulley and then to block B which hangs straight down. At the start of the experiment, block A is sliding up the plane and block B is moving downward, both at a speed of v0 = 1.5 m/s. Block A has a mass of 3.3 kg. Block B has a mass of 1.4 kg. The plane is inclined at an angle of 27 degrees above horizontal. The coefficient of kinetic friction between block A and the plane is 0.36 (no units). Assume that the only significant forces on the blocks are normal forces, tensions forces, friction from the inclined plane, and gravity (with g = 9.81 m/s2 ). From the start of the experiment, when block A is sliding up the plane at a speed of 1.5 m/s, how far (in units of meters) does block A slide before coming to a stop? Just one more "show your work" after this one. You will need to submit your solution for this question.
Solution
0 0

Required information Problem 12.052 - A curve in a speed track A curve in a speed track has a radius of 1, 200 ft and a rated speed of 120 mi/h. A racing car starts skidding on the curve when traveling at a speed of 180 mi/h. Problem 12.052.b - Coefficient of static friction Determine the coefficient of static friction between the tires and the track under the prevailing conditions. (Round the final answer to three decimal places.) The coefficient of static friction between the tires and the track is
Solution
0 0