Which of the following is the correct order of forces
Weak $<$ gravitational forces $<$ strong forces (nuclear) $<$ electrostatic
Gravitational $<$ weak $<$ (electrostatic) $<$ strong force
Gravitational $<$ electrostatic $<$ weak $<$ strong force
Weak $<$ gravitational $<$ electrostatic $<$ strong forces
In the figure, the tension in the horizontal cord is $30\,N$. Find the weight of the body $B.$ ............ $N$
Three blocks of masses ${m_1},\,{m_2}$ and ${m_3}$ are connected by massless strings as shown on a frictionless table. They are pulled with a force ${T_3} = 40\,N$. If ${m_1} = 10\,kg,\,{m_2} = 6\,kg$ and ${m_3} = 4\,kg$, the tension ${T_2}$ will be ........ $N$
A dynamometer $D$ is attached to two blocks of masses $6 \,kg$ and $4 \,kg$ as shown in the figure. The reading of the dynamometer is ............ $N$
A weight can be hung in any of following four ways by using same string. In which case is the string more likely to break is :-