Questions
A simple pendulum is hanging from a per inserted in a vertical wall. Its bob is stretched to horizontal position from wall and is left free to move, the bob hits the wall. If coefficient of restitution is . After how many collision the amplitude of vibration will become less than 600 (Hint: log2 = 0.3, log5 = 0.7)
detailed solution
Correct option is D
If l is length of pendulum, velocity while hitting is given by After n hittings velocity isTalk to our academic expert!
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One end of an ideal spring is connected with a smooth block with the other end with rear wall of driving cabin of a truck as shown in figure. Initially, the system is at rest. If truck starts to accelerate with a constant acceleration ‘a’ , then the block (relative to truck ):
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