Consider the situation shown in the figure and choose the correct option when μ=0.5,g=10m/s2

Consider the situation shown in the figure and choose the correct option when $\mu =0.5,g=10m/{s}^{2}$

1. A

Friction force on the block is 1N if M = 0.1 kg

2. B

Friction force on the block is 5N if M = 1 kg

3. C

Both A & B are correct

4. D

Both A & B are incorrect

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Solution:

${\left({f}_{s}\right)}_{max}=\mu N=0.5\left(10\right)=5N$

If mass  is 0.1KG, friction will be equal to the weight i.e 1N.

If mass is 1Kg, friction will be maximum i.e 5N.

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