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A block P of mass m is placed on a frictionless horizontal surface. Another block Q of same mass is kept on P and connected to the wall with the help of a spring of spring constant k as shown in the figure. `mu_s` and Q. The blocks move together performing SHM of amplitude A. The maximum value of the friction force between P and Q is :- A. kAB. `(kA)/2`C. ZeroD. `mu_s mg` |
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Answer» Correct Answer - B When two blocks performs simple harmonic motion together then at the extreme position (at amplitude =A) Restoring Force F=KA =2ma `rArr a ="KA"/"2m"` |
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