Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on frictionless horizontal surface. An impulsive force gives a velocity of 14
to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment is
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a)
b)
20
c)
10
d)
5
to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment isa)
b)
20
c)
10
d)
5
Question ID - 53954 | SaraNextGen Top Answer Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on frictionless horizontal surface. An impulsive force gives a velocity of 14 to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment is
a)
b)
20
c)
10
d)
5
Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on frictionless horizontal surface. An impulsive force gives a velocity of 14 to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment is
|
a) |
|
b) |
20 |
c) |
10 |
d) |
5 |
1 Answer
127 votes
Answer Key / Explanation : (c) -
|
(c) At the time of applying the impulsive force block of 10 kg pushes the spring forward but 4 kg mass is at rest. Hence,
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127 votes
Answer Link
127