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Assume sufficient friction to prevent slipping

Column-I

Column- II

(A)

(p)

Body accelerates forward

(B)

(q)

Rotation about the centre of mass is clockwise

(C)

(r)

Friction force acts backward

(D)

(s)

No friction acts

CODES :

 

A

B

C

D

 

 

a)

B,a

b,c

d

a,c

 

 

b)

a,b,d

a,b,c

a,b,d

a,b,c

 

 

c)

c

d

b

a

 

 

d)

a,c

d,c

c,d

c,d

 

 


Question ID - 101088 :-

Assume sufficient friction to prevent slipping

Column-I

Column- II

(A)

(p)

Body accelerates forward

(B)

(q)

Rotation about the centre of mass is clockwise

(C)

(r)

Friction force acts backward

(D)

(s)

No friction acts

CODES :

 

A

B

C

D

 

 

a)

B,a

b,c

d

a,c

 

 

b)

a,b,d

a,b,c

a,b,d

a,b,c

 

 

c)

c

d

b

a

 

 

d)

a,c

d,c

c,d

c,d

 

 

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

Solve to get

, if

if

So friction will act in the forward direction

if  so friction will act in the backward direction. Also solved to get

 is positive for all cases, hence body will accelerate in the forward direction in all cases

It means  will be in the clockwise direction. Hence, bodies will rotate in the clockwise direction



Next Question :

A student has been given a project to prepare an astronomical telescope, she has to select two lenses of type

(a)

concave lenses of different focal length

(b)

concave lenses of same focal length

(c)

convex lenses of different focal length

(d)

convex lenses of same focal length


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