Question
13.1)

Consider the track shown in the figure above. The section AB is one quadrant of a circle of radius r and is frictionless. B to C is a horizontal span of length L with a coefficient of kinetic friction μk. The section CD under the spring is frictionless. A block of mass m is released from rest at A. After sliding on the track, it is observed to compress the spring by a distance d.

a. Determine the speed of the block at point B

b. Find the work done by friction as the block slides from B to C.

c. What is the velocity of the block at point C?

d. Find the stiffness constant k for the spring.

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Answer #1


Sotn A L a) dam Conserva hon enengy Speed e blour ot point 8. co done by dnchonal forco, wgc cBe= mg L ng L eLet Ve be velout

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