CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Third Law of Motion

Two blocks pl...

Question

Two blocks placed on each other. Force F is applied on lower block . Then what happens to upper block the moment lower block moves. Assume that all surfaces are frictionless.

A

Block doesn't move forward and falls off .

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Falls off after moving forward for sometime

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Block moves in forward direction

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Upper block moves alongwith lower block.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
Block doesn't move forward and falls off .

When force is applied on the lower block, force of friction between upper and lower block causes the upper block to move in backward direction and thus it falls off.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A block of mass

m

is placed on another block of mass

M

which itself is lying on a horizontal surface. The coefficient of friction between two blocks is

μ_{1}

and that between the block of mass

M

and horizontal surface is

μ_{2}

. What maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

1 k g

0.5 k g

block move together on a horizontal frictionless surface. Each block exerts a force of

6 N

on the other. The blocks move a uniform acceleration of

Q. A block of mass m is placed on another block of mass M, which itself is lying on a horizontal surface. The coefficient of friction between two blocks is u and that between the block of mass M and the horizontal surface is u. What is maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

Q. A block of mass

m

is placed on another block of mass

M

, which itself is lying on a horizontal surface. The coefficient of friction between the two blocks is

μ_{1}

and that between the block of mass

M

and the horizontal surface is

μ_{2}

. What maximum horizontal force can be applied to the lower block so that the two blocks move without separation?

Q. A block of mass

m_{2}

is placed on a horizontal table and another block of mass

m_{1}

is placed on top of it. An increasing horizontal force

F = α t

is exerted on the upper block but the lower block never moves as a result. If the co-efficient of friction between the blocks is

μ_{1}

and the between the lower block and the table is

μ_{2}

, then what is the maximum possible value of

μ_{1} / μ_{2}

?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Third Law of Motion

PHYSICS

Watch in App

explore_more_icon

Explore more

Third Law of Motion

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon