In thefigure given below, all surfaces are assumed to be smooth and the force $F = 100 N$ . If acceleration of block B of mass 20 kg is 'a' and tension in string connecting block A of mass 20 kg is T then just after when the force F is applied .

Question

TestHub · Accepted Answer

The surface is smooth, so the horizontal force on B is $F = 100 N$ and $a = \frac{100}{20} = 5 m/ s^{2}$ .

Block A is on the smooth top of B and the string is not yet stretched in the horizontal direction at the instant the force is applied, so there is no horizontal force on A: $T = 0$ .

Physics - NLM Question with Solution | TestHub

Options:

Doubts & Discussion