Q.
A block of mass M is pulled along horizontal frictionless surface by a rope of mass m. Force p is applied at one end of rope Fig. The force whichthe rope exerts on the block is
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a
P(M−m)
b
PM(m+M)
c
PM(m+M)
d
PM(M−m)
answer is C.
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Detailed Solution
Let o be the common acceleration of the system. HereT =M o for blockP -T =m o for rope∴P - M a=ma or P = a(M+m)or a=P(M+m)Now T=MP(M+m)
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