Question

In: Physics

1) Two identical blocks of mass M slide on opposite frictionless tracks obeying y(x) = D((e^-x/D)-1)...

1) Two identical blocks of mass M slide on opposite frictionless 
tracks obeying y(x) = D((e^-x/D)-1) and y(x) = D((e^x/D)-1) repectively. 
There is gravity g.  A spring of equilibrium length zero and 
spring constant k is stretched between the masses, initially 
separated by 2D.  Both blocks are released from rest simultaneously 
and begin to slide down their planes, reducing the stretch of the spring between them.
a) Find the maximum value of k that will keep the blocks from
leaving their inclined planes (it will happen at the start).
b) Write the Lagrangian for the system, given that the blocks are
always directly across from each other.
c) Find the Euler-Lagrange equation, but don't bother to solve it.

Solutions

Expert Solution


Related Solutions

Two identical blocks of mass M = 2.60 kg each are initially at rest on a...
Two identical blocks of mass M = 2.60 kg each are initially at rest on a smooth, horizontal table. A bullet of very small mass m = 20 g (m << M) is fired at a high speed v. = 120 m/s towards the first block. It quickly exits the first block at a reduced speed of 0.40 v, then strikes the second block, quickly getting embedded inside of it. All the motion happens on the x-axis. (a) find the...
Two blocks are free to slide along the frictionless wooden track shown below. The block of...
Two blocks are free to slide along the frictionless wooden track shown below. The block of mass m1 = 5.07 kg is released from the position shown, at height h = 5.00 m above the flat part of the track. Protruding from its front end is the north pole of a strong magnet, which repels the north pole of an identical magnet embedded in the back end of the block of mass m2 = 10.3 kg, initially at rest. The...
Two identical, uniform and frictionless spheres, each of mass m, rest in a rigid rectangular container...
Two identical, uniform and frictionless spheres, each of mass m, rest in a rigid rectangular container as shown in the figure. A line connecting their centers is at 45° to the horizontal. a)If the angle is increased to 90° think about what happens to the forces. This can help provide a check to your answers as we make a change to the problem. For all of the following questions, the configuration is now changed such that the line connecting their...
Two identical particles, each of mass m, are located on the x axis at x=+x0 and...
Two identical particles, each of mass m, are located on the x axis at x=+x0 and x=-x0 a. Determine a formula for the gravitational field due to these two particles for points on the y axis; that is, write g⃗ g→ as a function of y, m, x0, and so on. Express your answers in terms of the variables y, m, x0, and appropriate constants. Enter your answers separated by a comma. b. At what point (or points) on the...
A block of mass m=2kg can slide down a frictionless 53 degree incline but is connected...
A block of mass m=2kg can slide down a frictionless 53 degree incline but is connected to a pully of mass M=4kg and radius R=0.5m. The pulley may be treated as a uniform disk. Find: a) The angular acceleration of the pulley b) The speed of the block after it has slid 1m starting from rest
Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25...
Two blocks on a frictionless horizontal surface are on a collision course.One block with mass 0.25 kg moves at 1 m/s to the right collides with a 0.5 kg mass at rest and the two masses stick together. What is the final speed of the blocks after the collision?           a) -0.33 m/s           b) +0.33 m/s           c) 3.27 m/s           d) 0.67 m/s           e) 0.25 m/s
Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light...
Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of v with arrow3m = 1.70 m/s. (a) What is the velocity of the block...
Two masses, m and 2m are start from opposite edges of a frictionless hemispherical bowl of...
Two masses, m and 2m are start from opposite edges of a frictionless hemispherical bowl of radius R at the same time, and with zero initial speed. (Gravitational acceleration is g) (a) (4 Pts.) Where will they collide? (Explain your reason) (b) (6 Pts.) If they collide elastically head on, how high would 2m rise from the bottom of the bowl after the collision? (c) (10 Pts.) Now assume that the two masses are left from two points that are...
A B C D E 1. Six identical Physics books, each with mass 2.0 kg, are...
A B C D E 1. Six identical Physics books, each with mass 2.0 kg, are taken to the Moon. On the Moon, their combined mass is a) zero, b) 2.0 kg, c) 6.0 kg, d) 12 kg. A B C D E 2. According to Newton's Law of Gravitation, if the distance between two bodies is doubled the attractive force between them is a) increased by a factor of 2, b) decreased by a factor of 1/2, c) increased...
find the centroid occupies y=x^2 and y=x+3 mass differs on x direction with d(x) =2(x+1) but...
find the centroid occupies y=x^2 and y=x+3 mass differs on x direction with d(x) =2(x+1) but constant on y line
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT