Multiple choice

A block R of mass 100 kg is placed on a block S of mass 150 kg as shown in the figure. Block R is tied to the wall by a massless and inextensible string PQ. If the coefficient of static friction for all surfaces is 0.4, the minimum force F (in kN) needed to move the block S is

  1. 0.69

  2. 0.88

  3. 0.98

  4. 1.37

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation