At t₁, an upward force of 2Mg was exerted to keep the spring mass system at rest. It consists of two blocks of mass M each, and a spring with stiffness k, connecting the two blocks. The initial stretch of the springis $1.A larger force is suddenly applied to the system with a constant magnitude F> 2Mg. The diagram shows the system at a later time t2, when the blocks have moved upward, and the stretch of the spring hasincreased to $2.AF-2MgMbAF>2MgWWWMCMGround(a) What is the kinetic energy of the center of mass of the system at t₂? Your answer should NOT depend on time.(b) What is the vibrational kinetic energy of the two blocks (their kinetic energy relative to the center of mass)? Your answer should NOT depend on time.

Part (a): Kinetic energy of the center of mass at t2To find the kinetic energy of the center of…

Answered: At t₁, an upward force of 2Mg was…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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An ideal spring can compress 2.33 cm by a force of 555 N, a block of mass m = 3.18 kg is released from rest on an inclined plane, the onclination of the plane is 32 degrees, the block rest momentarly when the spring is compress 5.48 cm. Find the distance d that the block travels from the begining of the motion until it reaches the spring. (g = 10 m/s2 ).
(Figure 1) shows a F = 6.4 N force pushing two gliders along an air track. The 170 g spring between the gliders is compressed. Assume the force Facts and the whole system moves in the same direction. The spring does not sag. Figure F A 400 g m B 600 g 1 of 1 Part A How much force does the spring exert on glider A? Express your answer to two significant figures and include the appropriate units. F = Submit Part B F = O Submit Value Request Answer How much force does the spring exert on glider B? Express your answer to two significant figures and include the appropriate units. μA Value Units Request Answer ? Units ?
Three blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a horizontal force F⃗ F→F_vec. (Figure 1) The masses of the three blocks are MA=MA= 11.5 kgkg , MB=MB= 19.5 kgkg , and MC=MC= 38.9 kgkg , Answer the following questions concerning the motion of the blocks. If the blocks are now accelerated at 1.5 m/s2m/s2, what F⃗ F→F_vec is required?
A horizontal force of 80.0 N is applied to a 5.00 kg block as the block slides a distance of 0.800 m along a horizontal floor. The coefficient of kinetic friction between the floor and the block is 0.500. If the block is initially at rest, how fast is it moving at the end of the displacement?
Vo X = 0 A block of mass M is attached to a spring of negligible mass and can slide on a horizontal surface along the x- direction, as shown above. There is friction present between the block and the surface. The spring exerts no force on the block when the center of the block is located at x = 0. At the instant shown above, the block is located at x = 0 and moving toward the right with speed v = vo. (a) For the instant shown above, with the block located at x = 0 and moving to the right, predict the direction of the net force on the block. If the net force is zero, select "The net force is zero." To the left The net force is zero L To the right Briefly justify your prediction. I x2 X2 5 0 / 10000 Word Limit Force (b) The above graph indicates the force exerted on the block by the spring as a function of position x, with the positive direction toward the right. On the same graph, draw a graph of the net force on the block, as a function of position x, for situations where the block is…
A spring (spring1) of initial length L10 and spring constant kl is hanging down the ceiling, with a ball (ball1) of mass m1 attached to the bottom of the spring. Another spring (spring2) of initial length L 20 and spring constant k2 is hanging down from ball1 with another ball (ball2) of mass m2 attached to the bottom of spring2. Use g to denote gravity, t is time, L1 is the position of ball1 minus the ceiling, L2 is the position of ball2 minus ball1, the velocity of ball1 is v1, and the velocity of ball2 is v2. What is the expression of the net force Fnet1 and Fnet2 acted upon ball1 and ball2?
Two boxes, Box A and Box B, are given an initial push and start moving at equal speed along a level, frictionless surface. The Box B has twice the mass of Box A. They both slide up the same frictionless incline plane. Which box rises to a greater height? Group of answer choices A) Box A rises to the greater height because it weighs less. B)The two objects rise to the same height. C) Box B rises to the greater height because it contains more mass. D) Box A rises to the greater height because it possesses a smaller amount of kinetic energy. E) Box B rises to the greater height because it possesses a larger amount of kinetic energy.
You decide to launch a rockof mass m1 using a tube containing a spring of spring constant k. When the spring is at equilibrium, it fills the entire tube. To launch a rock, you push it into the tube, compressing the spring a distance d, at which point a locking mechanism holds the spring(and the rock) in place. When the lockis released, the spring pushes the rock to the end of the tube where it will be launched into the air. The coefficient of kinetic friction between the rock and the inside surface of the tube is given by μk. You setup the launcher at an angle q above the horizontal with the spring end buried such that when the spring is compressed and locked, the rock is at ground level. a)Find the work done on the rock by non-conservative forces as it moves from the point of release to the end of the tube. Express your answer in terms of μk, m1, q, d, and any necessaryconstants. b) Find the velocity of the rockvfas it exits the launch tube in terms of μk, k, m1, q, d, and any…
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