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Standard IX

Physics

Second Law of Motion

A block of ma...

Question

A block of mass 3 kg in contact with a second block of mass 2 kg rests on a horizontal frictionless surface . A horizontal force of 10 N is applied to push the first block. The force with which the first block pushes the second block is:

4 N

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6 N

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10 N

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8 N

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Solution

The correct option is A
4 N

A = F /(m₁ +m₂) = 10/5 = 2 m/s²
Force on second block pushed by the first
F = m₂a = 2 x 2 =4 N

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A block of mass 3 kg in contact with a second block of mass 2 kg rests on a horizontal frictionless surface . A horizontal force of 10 N is applied to push the first block. The force with which the first block pushes the second block is:

The correct option is A 4 N A = F /(m1 +m2) = 10/5 = 2 m/s2 Force on second block pushed by the first F = m2a = 2 x 2 =4 N

The correct option is A
4 N

A = F /(m₁ +m₂) = 10/5 = 2 m/s²
Force on second block pushed by the first
F = m₂a = 2 x 2 =4 N