Three blocks $A$, $B$ and $C$ are pulled on a horizontal smooth surface by a force of $80 \mathrm{~N}$ as shown in figure
The tensions $T_1$ and $T_2$ in the string are respectively
$40 \mathrm{~N}, 64 \mathrm{~N}$
$60 \mathrm{~N}, 80 \mathrm{~N}$
$88 \mathrm{~N}, 96 \mathrm{~N}$
$80 \mathrm{~N}, 100 \mathrm{~N}$
Describe Galileo’s experiment of inclined plane regarding motion.
For given systen ${\theta _1}$ ....... $^o$
A mass of $10\,kg$ is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point, the rope deviated at an angle of $45^o$ at the roof point. If the suspended mass is at equilibrium, the magnitude of the force applied is .......... $N$ $(g = 10\,ms^{-2})$