In the given arrangement the maximum value of $F$ for which there is no relative motion between the blocks
$\mu m_1 g$
$\mu\left(m_1+m_2\right) g$
$\mu m_1 g\left(\frac{m_1}{m_2}+1\right)$
Zero
A car is moving with uniform velocity on a rough horizontal road. Therefore, according to Newton's first law of motion
A block of mass $4\,kg$ is placed on a rough horizontal plane A time dependent force $F = kt^2$ acts on the block, where $k = 2\,N/s^2$. Coefficient of friction $\mu = 0.8$. Force of friction between block and the plane at $t = 2\,s$ is ....... $N$
The tension $T$ in the string shown in figure is
As shown in the figure a block of mass $10\,kg$ lying on a horizontal surface is pulled by a force $F$ acting at an angle $30^{\circ}$, with horizontal. For $\mu_{ s }=0.25$, the block will just start to move for the value of $F..........\,N$ : $\left[\right.$ Given $\left.g =10\,ms ^{-2}\right]$
Which of the following is self adjusting in nature?