# physics

1.Three masses, m1, m2, and m3, are lying on a plane without friction and are connected by a string. A force F is applied to the mass m1 so that the whole system accelerates along a straight line. What is the tension of the string T between the masses m1 and m2? What is the acceleration of the system?
2.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the beginning is v. What maximal height h will the cylinder reach?

1. 👍 0
2. 👎 0
3. 👁 79
asked by Sandhya
1. 1. the string is accelerating m2 and m3, so tension= (m2+m3)a

but a= F/(m1+m2+m3)

2. Figure the total energy of the rolling cyclinder: KE+ RE

1/2 mv^2 + 1/2 I w^2
1/2 mv^2+ 1/2 m r^2*v^2/r^2

so combine all that, then set it equal to mgh, and solve for h, the height it would up.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### physics

A block of mass M1 = 15 kg is lying on a horizontal friction-less surface is connected to a string passing over a friction-less pulley. A mass of M2 = 25 kg is hanging at its other end as shown in the figure below. (i) Find the

asked by trei-sha on April 13, 2015
2. ### physics

blocks 1 and 2 of masses 2 kg and 4kg, respectively, are connected by a light string, as shown above. These blocks are further connected to a block of mass 3kg by another light string that passes overr a pully of negligible mass

asked by b on November 13, 2012
3. ### physics

Consider the following system with a 2 kg mass sitting on a table, connected to both 1 kg and 3 kg masses by strings which go over two separate pulleys and are pulling on the 2 kg mass in opposite directions. What static friction

asked by carolyn on February 2, 2015
4. ### Physics

Two identical masses are connected by a (massless, stretchless) string across a (massless, frictionless) pulley. The mass on the right is held so that the string connected to it is horizontal. Everything is initially at rest; the

asked by Chad on August 10, 2012
5. ### physics

Two masses are connected by a string. Mass A is on a flat roof and mass B is hanging over the edge of the roof. The mass on the roof is 15 kg and the hanging mass is 5 kg. The edge of the roof is 100 m above the ground. The two

asked by Anna on November 18, 2010
6. ### Physics

I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after

asked by joe on February 7, 2017
7. ### Physics

Two 1kg blocks rest on opposite sides of the double inclined plane. One inclined planes makes an angle of 30 degrees and the other an angle of 60 degrees with horizontal. The masses are connected by a light cord passing over a

asked by Nicholle on October 5, 2015
8. ### Physics

Calculate the formula for coefficient of kinetic friction in an inclined plane with a pulley and two masses coonected by a rope. You can only use the weight of the two masses, the height where the second object is and the distance

asked by Arthur on April 6, 2016
9. ### Physics

1.A block of masses mA is on a plane inclined at an angle θ with the horizontal. It is attached to another mass mB by means of string that passes over a pulley at the top of the incline. For mA = 8kg, mB = 5kg, θ = 20o, and the

asked by Dan Ira King on November 25, 2017
10. ### physics

A system has three masses, a 10kg mass is lying on a level surface and is connected on the left to a 6kg mass by a cord passing over a massless,frictionless pulley.And on the right, it is connected to a 9kg mass by a cord also

asked by christonne on August 18, 2014

More Similar Questions