Home
Class 12
PHYSICS
A 50 kg person stand on a 25 kg platfor...

A `50 kg` person stand on a `25 kg` platform. He pulls on the rope which is connected to the rope which is attached to the platform `via` the frictionless pulley as shown in the figure. The platform moves upwards at a steady rate if the force with which the person pulls the rope is

A

500 N

B

250 N

C

25 N

D

50 N

Text Solution

Verified by Experts

The correct Answer is:
B


F.B.D. of man and platform
`2T+N=25g`
`3T=750`
`N+T=50g`
`T=250N`
Promotional Banner

Similar Questions

Explore conceptually related problems

A 50 kg person stand on a 25 kg platform. He pulls on the rope which is connected to the rope which is attected to the plateform via the frictionless pulley as shown in the figure. The platform moves upwards at a steady rate if the force with which the person pulls the rope is

A man of mass m stands on a frame of mass M. He pulls on a light rope, which passes over a pulley. The other end of the rope is attached to the frame. For the system to be in equilibrium, what force must the man exert on the rope?

A mam of mass 50 g stands on a frame of mass 30 g. He pulls on a light rope which passes over a pulley. The other end of the rope is attached to the frame. For the system to be in equilibrium what force man must exert on the rope?

A block of mass M is pulled along a horizontal frictionless surface by a rope of mass m . Force F is applied at one end of rope. The force which the rope exerts on the block is:

A block of mass (m) slides along the track with kinetic friction mu. A man pulls the block through a rope which makes an angle theta with the horizontal as shown in the figure. The block moves with constant speed v. Power dlivered by man is .

A painter of mass M stands on a platfrom of mass m and pulls himself up by two ropes which hang over pulley as shown in fig. He pulls each rope with force F and moves upward with a uniform acceleration a. find a, neglecting the fact that no one could do this for long time.

A block of mass M is pulled along horizontal firctionless surface by a rop of mass m. Force P is applied at one end of rope. The force which the rope exerts on the block is

A block is dragged on a smooth plane with the help of a rope which moves with a velocity v as shown in figure. The horizontal velocity of the block is :

A block of mass 20 kg is set into motion on a frictionless horizontal surface with the help of massless smooth pulley and rope as shown in the figure. Find the acceleration of the pulley

Two blocks of mass 8 kg and 5 kg are connected by a heavy rope of mass 3 kg. An upward force of 180 N is applied as shown in the figure. The tension in the string at point P will be: