A body $A$ of mass $1 k g$ rests on a smooth surface. Another body $B$ of mass $0.2 k g$ is placed over $A$ as shown. The coefficient of static friction between $A$ and $B$ is $0.15$ . $B$ will begin to slide on $A$ , if $A$ is pulled with a force greater than :

1.764 N

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

0.1764 N

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

0.3 N

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

It will not slide for any

F

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

Open in App

Solution

The correct option is A $1.764 N$
$B$ will begin to slide on $A$ , if psuedo force is more than limiting friction
$F > F_{1} \Rightarrow m (\frac{F}{m + M}) > μ_{0} m g$
$\Rightarrow m (\frac{F}{m + M}) > 0.15 m g$
$∴ F > 1.764 N$

Suggest Corrections

Similar questions

Q. A body A of mass 1 kg rests on a smooth surface. Another body B of mass 0.2 kg is placed over A as shown. The coefficient of static friction between A and B is 0.15.B will begin to slide on A if A is pulled with a force greater than

Q. Case I: A block of mass 1 kg is placed on a rough horizontal surface.
Case II: A block of mass 1 kg is placed on a rough horizontal surface and another identical block is kept over it.
Choose the correct statement.

Q. A body of mass

m

rests on a horizontal surface. The coefficient of friction between the body and the surface is

μ

. If the mass is pulled by a force

P

as shown in the figure, the limiting friction between the body and surface will be

Question 8
Answer the following questions:
A. Why is sliding friction less than static friction between the same surfaces?
B. A book of mass 1 kg is kept at rest on a table. The maximum value of static friction is 200 N and sliding friction is 180 N.
i. If we apply a force of 190 N, will the body move?
ii. If we apply a force of 210 N, will the body move?

Q. A body of mass

2

k g

is placed on a horizontal surface having coefficient of kinetic friction

0.4

and coefficient of static friction

0.5

. during the sliding motion of the body the frictional force is

Join BYJU'S Learning Program

A body A of mass 1kg rests on a smooth surface. Another body B of mass 0.2kg is placed over A as shown. The coefficient of static friction between A and B is 0.15. B will begin to slide on A, if A is pulled with a force greater than :

The correct option is A 1.764NB will begin to slide on A, if psuedo force is more than limiting friction F>F1⇒m(Fm+M)>μ0mg⇒m(Fm+M)>0.15mg∴F>1.764N

A body $A$ of mass $1 k g$ rests on a smooth surface. Another body $B$ of mass $0.2 k g$ is placed over $A$ as shown. The coefficient of static friction between $A$ and $B$ is $0.15$ . $B$ will begin to slide on $A$ , if $A$ is pulled with a force greater than :

The correct option is A $1.764 N$
$B$ will begin to slide on $A$ , if psuedo force is more than limiting friction
$F > F_{1} \Rightarrow m (\frac{F}{m + M}) > μ_{0} m g$
$\Rightarrow m (\frac{F}{m + M}) > 0.15 m g$
$∴ F > 1.764 N$