The triangle has a mass of 2kg and each side has a length of 0.50 meters, and it is held so that the vertex connected to F3 is at an angle of 50° from the horizontal. All weights hang vertically downwards, where F1=10 N, F2=15 N and F3=20 N. What is the magnitude of the angular acceleration when the triangle is released and allowed to rotate, in rad/s?? Justify your answer with your rationale and equations used.

The triangle has a mass of 2kg and each side has a length of 0.50 meters, and it is held so that the vertex connected to F3 is at an angle of 50° from the horizontal. All weights hang vertically downwards, where F1=10 N, F2=15 N and F3=20 N. What is the magnitude of the angular acceleration when the triangle is released and allowed to rotate, in rad/s?? Justify your answer with your rationale and equations used.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 47PQ: A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a...

See similar textbooks

Similar questions

Luke Skywalker, 73 kg, is training on Dagobah. He runs up a incline for 10 m with an average velocity of 6 mph. He then performs the same run with Yoda on his back in 4.31 s. Assuming he makes the second run with equivalent power and that the acceleration due to gravity is the same as earth, what is Yoda's mass? 1 mi = 1.6 km A. 11 kg B. 13 kg C. 116 kg D. 189 kg
In the previous problems, suppose that you are moving the box, and have been moving it at 0.73 m/s. You back away, removing your applied force, and let it slide to a stop. How far does it go without your touching it? (Answer in meters.) The computer generated numbers are now M = 23 kg, μs =0.56, and μk = 0.48.
A boy who is, 73 kg, is training on Dagobah. He runs up a incline for 10 m with an average velocity of 6 mph. He then performs the same run with Yoda on his back in 4.31 s. Assuming he makes the second run with equivalent power and that the acceleration due to gravity is the same as earth, what is Yoda's mass? 1 mi = 1.6 km A. 11 kg B. 13 kg C. 116 kg D. 189 kg
In the very Dutch sport of Fierljeppen, athletes run up to a long pole and then use it to vault across a canal. At the very top of his arc, a 55 kg vaulter is moving at 2.5 m/s and is 5.1 m from the bottom end of the pole. What vertical force does the pole exert on the vaulter?
Two blocks (m1=5.2 kg, m2=3.6 kg), initially held at rest, are connected by a string that passes through a massless pulley as shown in the Figure. The block of mass m1 is given a push up the inclined plane, and released with an initial speed of v0 =11.8m/s . Take kinetic friction coefficient between the surface and blocks is µk =0.2, and θ =19.2 0. Find the maximum distance d for the block to move on the inclined plane after being released (just before coming to a stop temporarily). Take g=9.81 m/s2, and express your answer using two decimal places.
A ball having mass 3.2kg and velocity 9.4m/s travels due east. An impulsive force at point O, makes it change direction to due north with velocity 9.9 m/s. What is the angle counterclockwise from the +x (east) axis of the impulsive force in degrees?
Two masses are connected by a string as shown in the figure below. Mass m1=3.7 kg rests on a frictionless inclined plane which makes an angle of 34 degrees with the horizontal, while m2=10.6 kg is held at a height of h above the floor. If m2 is released from rest and hits the ground with a speed of V=2.3 m/s, find the height m2 is released. h=? Please take g=9.80 m/s2.
The two masses in the Atwood's machine shown in the figure have an initial speed of v = 0.15 m/s , and m2 is moving upward.How high does m2 rise above its initial position before momentarily coming to rest, given that m1 = 3.3 kg and m2 = 4.4 kg?
An object starts from rest at the origin and moves along the x axis subject to the force shown in the figure below. If the mass of the object is 37.0 kg, determine the speed of the object at the following positions. Each unit along the position axis is 2.00 m and each unit along the force axis is 3.00 N. (a) x = A (b) x = B (c) x = C
In the figure below, a runaway truck with failed brakes is moving downgrade at 36 m/s just before the driver steers the truck up a frictionless emergency escape ramp with an inclination of theta = 15°. The truck’s mass is 1.5 x 104 kg. (a) What minimum length L of the ramp must the ramp have if the truck is to stop at the top of the ramp at height h? (b) Does the minimum length L increase, decrease, or remain the same if the truck’s mass is decreased? Why? (c) If its speed is decreased? Why? Hint: Use Energy Principles.
Sally wants to hang up some decorations on the side of her house, so she props up a ladder of length L = 3m against a wall at an angle of θ = 50° with respect to the horizontal. The ground is somewhat icy, where the coefficient of static friction between the ground and the ladder’s feet is µ = 0.55; while the wall of her house can be considered frictionless. If Sally has a mass of 60kg and the ladder has a mass of 80kg, what is the max distance that she can climb up the length of the ladder without it slipping? You may assume the ground is perfectly flat, and the wall is perpendicular to the ground.
A 1.7-kgkg block slides on a horizontal surface with a speed of v=0.70m/s and an acceleration of magnitude a=3.1m/s2, as shown in What is the coefficient of kinetic friction between the block and the surface?