Question

A constant force ( mathrm{F} ), say; is pushing the block ( mathrm{m}_{1} ) which is connected with ( mathrm{m}_{2} ) by a light spring till the block ( m_{2} ) will slide. If ( mu_{1} ) and ( mu_{2} ) are the coefficient of friction between ( mathrm{m}_{1}, mathrm{~m}_{2} ) and ground respectively. (where ( k= ) stiffness of the spring) (A) The maximum compression of the spring is equal to ( frac{left(mu_{1} mathrm{~m}_{1}+mu_{2} mathrm{~m}_{2} ight) mathrm{g}}{mathrm{k}} ) (B) The magnitude of ( F ) is equal to ( frac{left(2 mu_{1} m_{1}+mu_{2} m_{2} ight) g}{2} ) (C) The magnitude of ( F=left(mu_{1} m_{1}+mu_{2} m_{2} ight) g ) (D) At maximum compression force ( F ) equals force of spring.

          A constant force ( mathrm{F} ), say; is pushing the block ( mathrm{m}_{1} ) which is connected with ( mathrm{m}_{2} ) by a light spring till the block ( m_{2} ) will slide. If ( mu_{1} ) and ( mu_{2} ) are the coefficient of friction between ( mathrm{m}_{1}, mathrm{~m}_{2} ) and ground respectively. (where ( k= ) stiffness of the spring)
(A) The maximum compression of the spring is equal to ( frac{left(mu_{1} mathrm{~m}_{1}+mu_{2} mathrm{~m}_{2}
ight) mathrm{g}}{mathrm{k}} )
(B) The magnitude of ( F ) is equal to ( frac{left(2 mu_{1} m_{1}+mu_{2} m_{2}
ight) g}{2} )
(C) The magnitude of ( F=left(mu_{1} m_{1}+mu_{2} m_{2}
ight) g )
(D) At maximum compression force ( F ) equals force of spring.

$A constant force ( mathrmF ), say; is pushing the block ( mathrmm1 ) which is connected with ( mathrmm2 ) by a light spring till the block ( m2 ) will slide. If ( mu1 ) and ( mu2 ) are the coefficient of friction between ( mathrmm1, mathrm m2 ) and ground respectively. (where ( k= ) stiffness of the spring) (A) The maximum compression of the spring is equal to ( fracleft(mu1 mathrm m1+mu2 mathrm m2 ight) mathrmgmathrmk ) (B) The magnitude of ( F ) is equal to ( fracleft(2 mu1 m1+mu2 m2 ight) g2 ) (C) The magnitude of ( F=left(mu1 m1+mu2 m2 ight) g ) (D) At maximum compression force ( F ) equals force of spring.$

Added by Anoushka C.

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