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Two bodies of masses and 4  are attached with a string as shown in fig. The body of mass hanging from a string of length  is executing oscillations of angular amplitude  while the other body is at rest. The minimum coeffcient of friction between the mass 4  and the horizontal surface should is

a)

b)

c)

d)


Question ID - 100110 | Top Ranker Answer | SaraNextGen

Two bodies of masses and 4  are attached with a string as shown in fig. The body of mass hanging from a string of length  is executing oscillations of angular amplitude  while the other body is at rest. The minimum coeffcient of friction between the mass 4  and the horizontal surface should is

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (d) -

(d)

Maximum tension in the string is in its lowest position. Speed of mass  in its lowest position is

Block of mass 4  dose not move. So,

Or 

Or



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