Home
Class 11
PHYSICS
A block of mass M is suspended by a corf...

A block of mass M is suspended by a corf A from the ceiling and another cord B is attached to the bottom of the block as shown in Which string will break if we pull the string B
(a) with a sudden jerk,
(b) steadily ?

Text Solution

Verified by Experts

(a) When the string B is pulled with a sudden jerk it will experiences tension while due to inertia of rest of the mass M this force will not be transmitted to the string A and so the string B will break.
(b) When the string B is pulled steadily the force applied to it will be transmitted from string B to A through the mass M and as tension in A will be greater than in B By Mg (weight of mass M), the string A will break.
Promotional Banner

Topper's Solved these Questions

  • FORCE AND NEWTONS LAWS OF MOTION

    GRB PUBLICATION|Exercise Problem|33 Videos

  • FORCE AND NEWTONS LAWS OF MOTION

    GRB PUBLICATION|Exercise Problem for practice|30 Videos

  • BASIC MATHEMATICS

    GRB PUBLICATION|Exercise Problems For Practice|35 Videos

  • FRICTION AND CIRCULAR MOTION

    GRB PUBLICATION|Exercise Comprehension type|11 Videos

Similar Questions

Explore conceptually related problems

A heavy block of mass m is supported by a cord C attached to the ceiling, and another cord D is attached to the bottom of the block. If a sudden jerk is given to D, then

A block of mass M is supported by a cord C from a rigid support, and another cord D is attached to the bottom of the block. If D is given a sudden jerk D breaks But if D is pulled steadily, cord C breaks. Why ?

A block of mass m is suspended from a fixed support with the help of a cord. Another identical cord is attached to the bottom of the block. Which of the following statement is/are true?

A block of mass 30 kg is suspended by three string as shown in fig, Find the tension in each string.

A block of mass M si suspended by two strings angles theta_(1) and theta_(2) with the horizontal. Find the tensions in the strings.

A block of mass 0.2 kg is suspended from the ceiling by a light string. A second block of mass 0.3 kg is suspended from the first block through another string. Find the tensions in the two strings. Take g=10 m/s^2 .

Two blocks are connected by a spring. The combination is suspended, at rest, from a string attatched to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upeer block of mass 2m ?

A block A of mass m is attached at one end of a light spring and the other end of the spring is connected to another block B of mass 2m through a light string as shown in the figure. A is held and B is in static equilibrium. Now A is released. The acceleration of A just after that instant is a . In the next case, B is held and A is in static equilibrium. Now when B is released, its acceleration immediately after the releas is b . The value of a//b is (pulley, string and the spring are massless).

A uniform cubical block of mass M is attached to a pulley. One end of a string, passing over the pulley is fixed to a light pole while is fixed on the bigger block and its another end is attached to a block of mass m as shown in figure. The maximum value of the mass m so that the block does not topple is : (string and pulley are ideal)