friction

Question

A block of mass 10 kg is placed on a rough horizontal surface having a coefficient of friction µ = 0.5. If a horizontal force of 100 N is applied on it, then the acceleration of the block will be (g = 10 m/s^2):

RankGuru · Accepted Answer

1. **Limiting Friction ($f_l$)**: $f_l = \mu N = \mu mg = 0.5 	imes 10 	imes 10 = 50	ext{ N}$.
2. **Analysis**: The applied force $F_{applied} = 100	ext{ N}$ is greater than the limiting friction ($50	ext{ N}$), so the block will move.
3. **Net Force**: $F_{net} = F_{applied} - f_l = 100 - 50 = 50	ext{ N}$.
4. **Acceleration ($a$)**: $a = \frac{F_{net}}{m} = \frac{50}{10} = 5	ext{ m/s}^2$.

Rank Guru

friction

Select the correct option:

More friction Practice Questions

A 2 kg block slides 3 m on rough horizontal surface (μ_k = 0.4, g = 10). Work done by friction?

A horizontal force just sufficient to start motion of a 20 kg crate on a rough floor is 60 N. Once i...

A 5 kg block rests on a rough incline of angle 30°. Coefficient of static friction is 0.4. Will the ...

A block of mass 5 kg is pulled 10 m along a horizontal surface by a force. If the coefficient of kin...

A block slides down a rough inclined plane of angle 45° with constant velocity. What is the coeffici...

A block of mass 5 kg is placed on a rough horizontal surface. The coefficient of static friction is ...