A body of mass $1\, kg$ lies on smooth inclined plane. The body is given force $F = 10N$ horizontally as shown. The magnitude of net normal reaction on the body is
$10 \sqrt 2 \,N$
$\frac{10}{\sqrt 2} \,N$
$10\,N$
None of these
A mass $M$ is placed on a very smooth wedge resting on a surface without friction. Once the mass is released, the acceleration to be given to the wedge so that $M$ remains at rest is $a$ where
The tension in the string connected between blocks is ......... $N$
A monkey is decending from the branch of a tree with constant acceleration. If the breaking strength is $75 \%$ of the weight of the monkey, the minimum acceleration with which monkey can slide down without breaking the branch
A block of mass $m$ as shown in figure is pulled by a force $40 \,N$. The tension at the middle of the block is ........... $N$
$T_1$ and $T_2$ in the given figure are