Home
Class 6
PHYSICS
Akash can move an iron block at rest ,pl...

Akash can move an iron block at rest ,placed on a metal sheet by pushing it with a force of 50 N. When a lubricant is applied on the effort is reduced to do the same activity .The force with which the block can be moved in the second case is `"________"`.

A

25 N

B

37.5N

C

12.5 N

D

50 N

Text Solution

Verified by Experts

The correct Answer is:
B
Intial force applied to move the block F= 50 N When the lubricant is applied ,one fourth of the effort is reduced .
Therefore , the force applied to move the block is `F=F-F/4= 50 - 50/4`
=50- 12.5= 37.5 N
Hence , the correct option is (b)
Promotional Banner

Topper's Solved these Questions

  • Force and Pressure

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST |30 Videos

  • Force and Pressure

    PEARSON IIT JEE FOUNDATION|Exercise CROSSWORD|1 Videos

  • Force and Pressure

    PEARSON IIT JEE FOUNDATION|Exercise TEST YOUR CONCEPTS (Short Answer Type Questions) |48 Videos

  • ENVIRONMENT- AN ETERNAL GIFT TO MANKIND

    PEARSON IIT JEE FOUNDATION|Exercise Crossword|1 Videos

  • LIGHT

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST (CROSS WORD )|11 Videos

Similar Questions

Explore conceptually related problems

Find the minimum value of force (in N) man should apply so that block can move

Suppose the block of the previous problem is pushed down the incine witas force of 4N. How far will the block move in the first two seconds after starting from rest? The mass of the block is 4 kg.

A 4 kg block A is placed on the top of 8 kg block B which rests on a smooth table. A just slips on B when a force of 12 N is applied on A. Then the maximum horizontal force F applied on B to make both A and B move together, is

The maximum value of F which can be applied on the system shown in figure so that both blocks move together with same acceleration is

A homogenous block of mass m, width b and height h is resting on a rough horizontal surface A horizontal force F is applied to it , which makes it to move with a constant velocity . The coefficient of friction between block and surface is mu Find the greatest height at which force F may be applied to slide the block with out tipping over

A force F = 20 N is applied to a block (at rest) as shown in figure. After the block has moved a distance of 8 m to the right, the direction of horizontal component of the force F is reversed. Find the velocity with which block arrives at its starting point. .