Two blocks which are connected to each other by means of a massless string are placed on two inclined planes as shown in figure. After releasing from rest, the magnitude of acceleration of the centre of mass of both the blocks is $(g = 10\, m/s^2)$
$1 \,m/s^2$
$\frac{1}{\sqrt 2}\,m/s^2$
$\sqrt 2 \,m/s^2$
Zero
Two hollow spheres each of mass $M$ and radius $\frac {R}{2}$ are connected with a massless rod of length $2R$ as shown in figure. What will be the moment of inhertia of the system about an axis $yy'$ passing through the center of one of the sphere and perpendicular to the rod
State and explain the law of conservation of momentum of the system of particle.
Define mechanical advantage in lever.
Write the meaning of homogeneous bodies.
What is system of particle ?