Class 11PhysicsNewton's Laws of Motion and FrictionMotion of Body (or Connected Bodies in horizontal or vertical) (by String or Contact)
Difficult$A$ steel block of $10\, \text{kg}$ rests on a horizontal floor. When three iron cylinders,each of mass $20\, \text{kg}$,are placed on it as shown,the entire system (block + cylinders) moves downward with an acceleration of $0.2\, \text{m/s}^2$. The normal reaction $R$ exerted by the floor is ..... $\text{N}$. [Take $g = 10\, \text{m/s}^2$]
- A$714$
- B$716$
- C$684$
- D$686$
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