What will be the acceleration of blocks and tension in the string connecting the blocks $2\,kg$ and $5\,kg$ for the given figure :-
$14\, m/s^2, 120\, N$
$4\,m/s^2, 70\, N$
$4\, m/s^2, 30\, N$
$14\, m/s^2, 140\, N$
Ten one-rupeed coins are put on top of each other on a table. Each coin has mass $m$. The reaction of the $6^{th}$ coin (counted from the bottom) on the $7^{th}$ coins is .......... $mg$
A block of $\sqrt{3}\,kg$ is attached to a string whose other end is attached to the wall. An unknown force $F$ is applied so that the string makes an angle of $30^{\circ}$ with the wall. The tension $T$ is $...........\,N$ :(Given $g =10\,ms ^{-2}$ )
The restoring force of a spring with a block attached to the free end of the spring is represented by
A book is lying on the table. What is the angle between the action of the book on the table and the reaction of the table on the book?
What is Free body diagram ?