Question 212: Laws of Motion

Question

A block of mass 2 kg is placed on inclined rough surface AC (as shown in figure) of coefficient of friction $\mu$. If g = 10 m s$^{-2}$, the net force (in N) on the block will be:
![](https://app-content.cdn.examgoal.net/fly/@width/image/1lipzyl5g/6327c86f-c8bf-4c23-ad5d-39b8ce7c9615/bc623540-078d-11ee-b7c8-a98448959a38/file-1lipzyl5h.png?format=png)

Accepted Answer

$\mu=\frac{1}{\sqrt3}$
$	an30^\circ=\frac{1}{\sqrt3}$
as $\mu=	an	heta$
the block is at rest and net force on it must be zero.
![](https://app-content.cdn.examgoal.net/fly/@width/image/1lipzyzfw/15d71aad-903e-4b57-ad04-05eb1427b913/c76c22c0-078d-11ee-b7c8-a98448959a38/file-1lipzyzfx.png?format=png)

Answer

10$\sqrt3$

Answer

zero

Answer

10

Answer

20

Laws of Motion

A block of mass 2 kg is placed on inclined rough surface AC (as shown in figure) of coefficient of friction \mu. If g = 10 m s^{-2}, the net force (in N) on the block will be:

Choose the correct answer: