Number of results: 3,572
physics rotations-please help
Two masses, mA = 35.0 kg and mB = 42.0 kg, are connected by a rope that hangs over a pulley (as in the figure). The pulley is a uniform cylinder of radius 0.50 m and mass 4.8 kg. Initially mA is on the ground and mB rests 2.5 m above the ground. If the system is released, use ...
Thursday, March 11, 2010 at 9:06pm by Liz
Hi, I've been having issues with solving this problem. Could anyone help? Two blocks, of masses M = 2.0 kg and 2M are connected to a spring of spring constant k = 215 N/m that has one end fixed, as shown in the figure below. The horizontal surface and the pulley are ...
Sunday, March 21, 2010 at 3:09pm by Jack
Ignore the pulley's moment of inertia (since they don't tell you its radius and mass). Let T be the unknown tension on both sides. With two equations, the variable T can be eliminated to solve for the acceleration, which is the same for both masses. We are eager to critique ...
Wednesday, March 24, 2010 at 10:52am by drwls
In the ideal apparatus shown in the diagram, m1 = 2.0 kg. What is m2 if both masses are at rest? How about if both masses are moving at constant velocity? Ideal aparatus is a pulley system with M1 on a 37 degree incline and m2 dangle on the other side of the incline
Wednesday, April 7, 2010 at 12:02pm by Anonymous
The person weighs m=60 kg, so it takes 60 kg weight (mg) to keep her suspended. If there is no motion, the tension on the rope is therefore 60g. The next step is to establish if there is motion. If the pulley is frictionless, then the tension on each side of the pulley is the ...
Sunday, June 13, 2010 at 10:01am by MathMate
Two masses are hanging over a frictionless, massless pulley as shown blocks_pulley_aMass m1 is 5.0 kg and mass m2 is 7.0 kg
Saturday, June 19, 2010 at 6:25pm by bill
The two masses in the Atwood's machine shown in the figure are initially at rest at the same height. After they are released, the large mass, , falls through a height and hits the floor, and the small mass, , rises through a height . Find the speed of the masses just before ...
Thursday, July 1, 2010 at 10:06pm by meera
A force vector F of magnitude 12N is applied to a FedEx box of mass m2=1kg. The force is directed up a plane tilted by theta=37 degrees. The box is connected by a cord to a UPS box of mass m1=3kg on the floor. The floor, plane, and pulley are frictionless, and the masses of ...
Tuesday, July 6, 2010 at 9:43pm by Rick
The picture I get from your description is of mass m1 stationary on the ground while m2 gsts pushed up the ramp. This would create slack in the cord that connects the masses, passing over a pulley, and the tension would be zero. This is probably not the picture you have in mind.
Tuesday, July 6, 2010 at 9:43pm by drwls
The figure below shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 80 N on the wall to which it is attached. The tensions in the shorter cords are T1 = 45.0 N, T2 = 37.3 N...
Tuesday, July 13, 2010 at 2:27pm by Sam
In the figure below, three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 30.0 kg, mB = 40.0 kg, mC = 28.0 kg. The image is a horizontal pulley, with mass mA on the left, and...
Wednesday, July 14, 2010 at 12:02pm by Sam
A pulley is massless and frictionless. 3 kg, 2 kg (on the left), and 6 kg (on the right) masses are suspended What is the tension T1 in the string be- tween the two blocks on the left-hand side of the pulley? Can I solve this like if it was two masses? My prof gave an example ...
Wednesday, September 22, 2010 at 8:21pm by Genevieve
T2 and T3 (around the pulley) should be equal. You can use this to solve for the tension=T2=T3 just like the prof's example. After that, use the same principle to solve for T1 between masses m1 and m2. Note that m2 is pulled with a tension of T=T2=T3.
Wednesday, September 22, 2010 at 8:21pm by MathMate
A pulley is massless and frictionless. 3 kg, 2 kg, and 6 kg masses are suspended. What is the tension T1 in the string between the two blocks on the left-hand side of the pulley?
Friday, September 24, 2010 at 1:15pm by Genevieve
A pulley is holding two masses-0.5 kg and 2.0 kg. The system is in static equilibrium; the pulley is frictionless; the string is massless. What is the tension of the string holding the pulley?
Wednesday, October 20, 2010 at 2:26pm by Lynn
i need help setting it up to find the answers. (answers included) two masses are connected together by a string which is then hung over a pulley. m1= 7.50 kg and m2= 6.50 kg. before they are released m1 is suspended h= 135cm above the floor while m2 is sitting on the floor. a....
Monday, November 1, 2010 at 11:04pm by danielle
Masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley. m1 rests on the floor and m2 rests on a fixed incline of 40degrees. The masses are released from rest, and m2 slides 1.00 m down the incline in 4.0 sec. Determine (a) ...
Saturday, November 6, 2010 at 4:24pm by Wendy
Atwood's Machine An Atwood's machine consists of two masses, and , connected by a string that passes over a pulley. If the pulley is a disk of radius and mass , find the acceleration of the masses.
Monday, November 8, 2010 at 2:54pm by lauren
an atwoods machine has a solid cylindrical pulley with a mass of 200g and a radius of 10cm. a 1.2 kg mass is hung on one side and a 1.1kg mass on the other side, find the acceleration of the two masses and the itme for them to travel a distance of 60cm
Wednesday, November 17, 2010 at 11:06am by chris
A 2 kg mass on a horizontal friction-free air track is accelerated by a string attached to a 115 kg mass hanging vertically from a pulley as shown. Compare the accelerations when the masses are interchanged, that is, for the case where the 115 kg mass dangles over the pulley, ...
Friday, November 19, 2010 at 5:00pm by justin