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9 1. A bob weighing 30kg is held by a rope and released from...
11. A thin straight board is held horizontal and then released from rest. It has a...
11. A thin straight board is held horizontal and then released from rest. It has a mass M and a length L, and it can pivot at one end as shown above. Ignore all effects due to friction At the instant it is released from rest in the horizontal position: (a) What is the board's angular acceleration? (b) What is the tangential acceleration of the board's center of mass? (c) What is the tangential acceleration of the board's free end?...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down t...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
A pendulum bob, with mass 1.60 kg, is held at rest initially in a horizontal position...
A pendulum bob, with mass 1.60 kg, is held at rest initially in a horizontal position as shown. The string has negligible mass and a length of 1.20 m. The bob is then released from rest. It swings down and collides with a block of mass 2.40 kg initially at rest. Ignore air resistance. a) Use the Principle of Conservation of Mechanical Energy to find the speed of the pendulum bob just before the collision. b) (The bob collides with...
If the pendulum,as shown below, is released from the horizontal position with the length from the...
If the pendulum,as shown below, is released from the horizontal
position with the length from the pendulums centre of mass to its
axis of rotation being 2.52 m, the velocity of its bob in the
vertical position is
If the pendulum,as shown below, is released from the horizontal position with the length from the pendulums centre of mass to its axis of rotation being 2.52 m, the velocity of its bob in the vertical position is
PLEASE SOLVE TO GET THE VELOCITY OF THE ***BOB*** (not the rod) when the rod is...
PLEASE SOLVE TO GET THE VELOCITY OF THE ***BOB*** (not
the rod) when the rod is vertical
thank you
1. A pendulum consists of a 25-kg bob and a massless rod 2.8 meters long. The bob is raised to the horizontal position and released from rest. Find the tension in the rod when the rod is vertical. | 2.5m o* K +U = k' + mgh = / 2 mv² +0 Convention Ta gh = 1 / 2 = √29h...
1. A 40-kg child sits on a swing held by a light rope. At the low...
1. A 40-kg child sits on a swing held by a light rope. At the low point of the swing, the child is moving 4 m/s. How high above the low point will the child rise before they stop? 2. A cannon ball is fired upward at 45 degrees above the horizontal and rises to a max height of 1000 m. What is the muzzle velocity of the cannon? 3. A cannon ball is fired upward at 45 degrees above...
21. A ball released from rest on an inclined plane accelerates down the plane at 2...
21. A ball released from rest on an inclined plane accelerates down the plane at 2 m/s2.Complete the table below showing the ball's velocities at the times indicated. Do not use a calculator for this; this is a reasoning question, not a calculation problem. Time (s)Velocity (m/s) 22. A bowling ball rolls along a level surface, then up a 30 slope, and finally exits onto another level surface at a much slower speed. a. Draw position-, velocity-, and acceleration-versus-time graphs...
A mass weighing 20 N stretches a spring 6 m. The mass is initially released from...
A mass weighing 20 N stretches a spring 6 m. The mass is initially released from rest from a point 8 m below the equilibrium position. (a) Find the position x of the mass at the times t = 7/12, 7/8, 1/6, 1/4, and 97/32 s. (Use g = 9.8 m/s2 for the acceleration due to gravity.) x(1/12) = 7.56 E * *(1/8) = 7.02 E * (1/6) = 6.29 E * x(/4) = 4.34 E * (97/32) = 3.47...
Problem #1 m1 m2 Two blocks mı = 4 kg and m2 = 9 kg are...
Problem #1 m1 m2 Two blocks mı = 4 kg and m2 = 9 kg are initially arranged as shown in the figure. They are tied to a massless rope going around the pulley. The pulley has a form of a cylinder with a mass of M = 8 kg and radius of R = 40 cm. Both the incline and the horizontal surface have a coefficient of kinetic friction ulk = 0.15. The incline is at the angle o...
Problem #1 mi m2 Two blocks mı = 4 kg and m2 = 9 kg are...
Problem #1 mi m2 Two blocks mı = 4 kg and m2 = 9 kg are initially arranged as shown in the figure. They are tied to a massless rope going around the pulley. The pulley has a form of a cylinder with a mass of M = 8 kg and radius of R = 40 cm. Both the incline and the horizontal surface have a coefficient of kinetic friction ulk = 0.15. The incline is at the angle 0...
11. A thin straight board is held horizontal and then released from rest. It has a mass M and a length L, and it can pivot at one end as shown above. Ignore all effects due to friction At the instant it is released from rest in the horizontal position: (a) What is the board's angular acceleration? (b) What is the tangential acceleration of the board's center of mass? (c) What is the tangential acceleration of the board's free end?...
1. (30 points) A 2-kg block A is pushed up against a spring compressing it a distance r-0.1 m (i.e., the spring is unattached to the block). The block is then released from rest and slides down the 20° incline u it strikes a 1-kg sphere B that is suspended from a 1-m inextensible rope. The spring constant 800 N/m, the coefficient of friction between A and the ground i length of the spring d-1.5, and the coefficient of restitution...
If the pendulum,as shown below, is released from the horizontal
position with the length from the pendulums centre of mass to its
axis of rotation being 2.52 m, the velocity of its bob in the
vertical position is
If the pendulum,as shown below, is released from the horizontal position with the length from the pendulums centre of mass to its axis of rotation being 2.52 m, the velocity of its bob in the vertical position is
PLEASE SOLVE TO GET THE VELOCITY OF THE ***BOB*** (not
the rod) when the rod is vertical
thank you
1. A pendulum consists of a 25-kg bob and a massless rod 2.8 meters long. The bob is raised to the horizontal position and released from rest. Find the tension in the rod when the rod is vertical. | 2.5m o* K +U = k' + mgh = / 2 mv² +0 Convention Ta gh = 1 / 2 = √29h...
21. A ball released from rest on an inclined plane accelerates down the plane at 2 m/s2.Complete the table below showing the ball's velocities at the times indicated. Do not use a calculator for this; this is a reasoning question, not a calculation problem. Time (s)Velocity (m/s) 22. A bowling ball rolls along a level surface, then up a 30 slope, and finally exits onto another level surface at a much slower speed. a. Draw position-, velocity-, and acceleration-versus-time graphs...
A mass weighing 20 N stretches a spring 6 m. The mass is initially released from rest from a point 8 m below the equilibrium position. (a) Find the position x of the mass at the times t = 7/12, 7/8, 1/6, 1/4, and 97/32 s. (Use g = 9.8 m/s2 for the acceleration due to gravity.) x(1/12) = 7.56 E * *(1/8) = 7.02 E * (1/6) = 6.29 E * x(/4) = 4.34 E * (97/32) = 3.47...
Problem #1 m1 m2 Two blocks mı = 4 kg and m2 = 9 kg are initially arranged as shown in the figure. They are tied to a massless rope going around the pulley. The pulley has a form of a cylinder with a mass of M = 8 kg and radius of R = 40 cm. Both the incline and the horizontal surface have a coefficient of kinetic friction ulk = 0.15. The incline is at the angle o...
Problem #1 mi m2 Two blocks mı = 4 kg and m2 = 9 kg are initially arranged as shown in the figure. They are tied to a massless rope going around the pulley. The pulley has a form of a cylinder with a mass of M = 8 kg and radius of R = 40 cm. Both the incline and the horizontal surface have a coefficient of kinetic friction ulk = 0.15. The incline is at the angle 0...
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