Question

Notify Me Bookmark

Block and three cords. In the figure below, a block B of mass M = 24.9 kg hangs by a cord from a knot K of mass mK, which hangs from a ceiling by means of two cords. The cords have negligible mass, and the magnitude of the gravitational force on the knot is negligible compared to the gravitational force on the block. The angles are θ1 = 24.0∘ and θ2 = 51.0∘. What is the tension in (a) cord 3, (b) cord 1, and (c) cord 2?

Block and three cords. In the figure below, a block B of mass M = 24.9 kg hangs by a cord from a knot K of mass mK, which hangs from a ceiling by means of two cords. The cords have negligible mass, and the magnitude of the gravitational force on the knot is negligible compared to the gravitational force on the block. The angles are θ1 = 24.0∘ and θ2 = 51.0∘. What is the tension in (a) cord 3, (b) cord 1, and (c) cord 2?

Image text
Block and three cords. In the figure below, a block B of mass M = 24.9 kg hangs by a cord from a knot K of mass m K , which hangs from a ceiling by means of two cords. The cords have negligible mass, and the magnitude of the gravitational force on the knot is negligible compared to the gravitational force on the block. The angles are θ 1 = 24.0 ∘ and θ 2 = 51.0 ∘ . What is the tension in (a) cord 3, (b) cord 1 , and (c) cord 2?

Detailed Answer

3 0

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

Answer
Doubtrix Logo

This Problem has been solved!

You'll get a detailed, step-by-step and expert verified solution.

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
Login Sign Up
  • Student Reviews:
  • (3)
  • Correct answers (3)
  • Complete solution (3)
  • Step-by-step solution (3)
  • Fully explained (3)

Similar/Related Questions

In a judo foot-sweep move, you sweep your opponent's left foot out from under him while pulling on his gi (uniform) toward that side. As a result, your opponent rotates around his right foot and onto the mat. The figure shows a simplified diagram of your opponent as you face him, with his left foot swept out. The rotational axis is through point O. The gravitational force F→g on him effectively acts at his center of mass, which is a horizontal distance d = 25 cm from point O. His mass is 84 kg, and his rotational inertia about point O is 65 kg⋅m2. What is the magnitude of his initial angular acceleration about point O if your pull F→a on his gi is (a) negligible and (b) horizontal with a magnitude of 300 N and applied at height h = 1.4 m? Assume free-fall acceleration to be equal to 9.81 m/s2. (a) Number Units (b) Number Units

Solution
0 0

A block of mass m1 = 1.95 kg and a block of mass m2 = 6.10 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. The fixed, wedge-shaped ramp makes an angle of θ = 30.0∘ as shown in the figure. The coefficient of kinetic friction is 0.360 for both blocks. (i) (a) Draw force diagrams of both blocks and of the pulley. No file chosen (b) Determine the acceleration of the two blocks. (Enter the magnitude of the acceleration.) m/s2 (c) Determine the tensions in the string on both sides of the pulley. left of the pulley N right of the pulley N
Solution
0 0

The two ends of a length of chain are attached so that the chain makes a circle. If the chain is then spun very quickly, it can roll along the ground like a bicycle tire without crumpling. Consider the rolling chain shown in the figure. Assume the chain has uniform linear mass density μ and its center of mass moves to the right at a speed v0. (a) Determine the tension in the chain in terms of μ and v0. Assume the weight of an individual link is negligible compared to the tension. T = (b) If the loop rolls over a small bump, the resulting deformation of the chain causes two transverse pulses to propagate along the chain, one moving clockwise and one moving counterclockwise. What is the speed of the pulses traveling along the chain? (Use any variable or symbol stated above as necessary.) v = (c) Through what angle (in rad) does each pulse travel during the time interval over which the loop makes one revolution? (Assume the angle is measured clockwise from the ground. ) clockwise-traveling pulse rad counterclockwise-traveling pulse rad
Solution
0 0