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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A spring with a spring constant k is used to stop the box moving in an inclined plane, with an initial velocity V1 of mass m. The spring is initially compressed 100 mm with the cables. Since the box creates a maximum of x compression in the spring.(a) Find the coefficient of kinetic friction between the surface and the box.(b) Find the velocity of the box when it re-passes its initial position. V1=3.5 m/s m=26 kg s=620 mm x=45 mm α0 = 140
Two blocks are connected by a light string that passes over a frictionless pulley as in Figure 1. The system isreleased from rest while m2 is on the floor and m1 is a distance h above the floor.a) Assuming m1 > m2, find an expression for the speed of m1 just as it reaches the floor.b) Taking m1=6.5 kg, m2=4.2 kg, and h=3.2 m, evaluate your answer to part (a).c) Find the speed of each block when m1 has fallen a distance of 1.6m.
Problem B2. A small box of mass m = 1.50 kg starts from rest and glides down a smooth, frictionless hill from a height h = 2.00 m to the base, where it meets a %3D rough plank of mass M = 5.00 kg that is resting on the frictionless horizontal ground surface. Due to the friction between the box and the plank, its speed is reduced until, at a certain moment, it begins to move together with the plank as if they were a single object. %3D M Figure B2. Problem diagram B2 a) Find the speed with which the box reaches the base of the hill.
please fast
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?
at time T/2. 4. A 0.98 kg. block slides on a frictionless, horizontal surface with a speed of 1.32 m. The block encounters an unstretched spring with a force constant of 245N/m. How far is the spring compressed before the block comes to rest?
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?
=Two blocks are connected by a light string that passes over a frictionless pulley as shown. The block of mass m₁ = 0.95 kg lies on a horizontal surface and is connected to a spring of force constant 30 N/m. The system is released from rest when the spring is unstretched. The hanging block of mass m₂ 0.5 kg falls a distance of 0.10 m before coming to rest. Calculate the coefficient of kinetic friction between the mass m, and the horizontal surface. A. 0.43 B. 0.37 C. 0.32 D. 0.28 = Reference my
ASAP
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?
A mass of 0.5 kg moving with a speed of 1.5 m/s on a horizontal smooth surface, collides with a nearly weightless spring of force constant k = 50 N/m. The maximum compression of the spring would be Fooooo

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