A mass-spring system is initially compressed towards a wall and hold in equilibrium with the help of a force F. At time t=0 sec, the force F is suddenly released. The mass- spring system then reaches a velocity v while sliding on the frictionless surface. (a) What is the work done by the wall on the mass-spring system as the force F is released? (b) Is the energy of the mass-spring system conserved? Why? (c) Calculate the v in terms of k,m and F| . (d) Is the linear momentum conserved? (e) Calculate the average force exerted by the wall on the mass-spring system after the force F is released, assuming that the spring remains in contact with the wall for a short time At . Express your answer in terms of k,m,At and F| . be fore af ter t= o t-o ww u EMM
A mass-spring system is initially compressed towards a wall and hold in equilibrium with the help of a force F. At time t=0 sec, the force F is suddenly released. The mass- spring system then reaches a velocity v while sliding on the frictionless surface. (a) What is the work done by the wall on the mass-spring system as the force F is released? (b) Is the energy of the mass-spring system conserved? Why? (c) Calculate the v in terms of k,m and F| . (d) Is the linear momentum conserved? (e) Calculate the average force exerted by the wall on the mass-spring system after the force F is released, assuming that the spring remains in contact with the wall for a short time At . Express your answer in terms of k,m,At and F| . be fore af ter t= o t-o ww u EMM
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Hi, I couldn't solve part e of the question. I did not understand how to formulate minus F with k m delta t and F. I know the meanings of k m t and F but I couldn't use it to prove Newton's 3rd law.
Transcribed Image Text:A mass-spring system is initially compressed towards a wall and hold in equilibrium with
the help of a force F . At time t=0 sec, the force F is suddenly released. The mass-
spring system then reaches a velocity v while sliding on the frictionless surface.
(a) What is the work done by the wall on the mass-spring system as the force F is
released?
(b) Is the energy of the mass-spring system conserved? Why?
(c) Calculate the v in terms of k,m and F.
(d) Is the linear momentum conserved?
(e) Calculate the average force exerted by the wall on the mass-spring system after the
force F is released, assuming that the spring remains in contact with the wall for a short
time At . Express your answer in terms of k,m,At and F.
be fore
af ter
t-o
t = o
WWH m
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