Two blocks of mass $2 \,kg$ and $4 kg$ are accelerated with same acceleration by a force $10 \,N$ as shown in figure on a smooth horizontal surface. Then the spring force between the two blocks will be .......... $N$ (spring is massless)
$5$
$10$
$\frac{10}{3}$
$\frac{5}{3}$
The $50\,kg$ homogeneous smooth sphere rests on the $30^{\circ}$ incline $A$ and bears against the smooth vertical wall $B$. Calculate the contact forces at $A$ and $B.$
For given systen ${\theta _1}$ ....... $^o$
Describe Galileo’s experiment of inclined plane regarding motion.
Define force. What is contact force ? Write two example of field force.