A block of mass M is attached to the lower end of a vertical rope of mass m. An upward force P acts on the upper end of the rope. The system is free to move. The force exerted by the rope on the block is PM/(M+m)

Q: A block of mass M is attached to the lower end of a vertical rope of mass m. An upward force P acts on the upper end of the rope. The system is free to move. The force exerted by the rope on the block is PM/(M+m)

(a) In all cases

(b) Only if the rope is uniform

(d) Only if P > (M + m) g

Click to See Answer :

Ans: (c)

A block of mass M is attached to the lower end of a vertical rope of mass m. An upward force P acts on the upper end of the rope. The system is free to move. The force exerted by the rope on the block is PM/(M+m)

Also Read :

Recommended

A wire in the form of a sector of radius l and of angle (θ = π/4) having a resistance R is free to rotate about an axis

A very small circular loop of area 5 × 10^-4 m^2, resistance 2 ohm and negligible self inductance initially coplaner and concentric ….

In the figure shown is a R-L circuit connected with a cell of emf ξ through a key k . If key k is closed find the current drawn….

Latest Plus

A wire in the form of a sector of radius l and of angle (θ = π/4) having a resistance R is free to rotate about an axis

A very small circular loop of area 5 × 10^-4 m^2, resistance 2 ohm and negligible self inductance initially coplaner and concentric ….

In the figure shown is a R-L circuit connected with a cell of emf ξ through a key k . If key k is closed find the current drawn….

A 2 kg block slides on a horizontal floor with a speed of 4 m/s. It strikes a uncompressed spring, and compresses it till the block is motionless….