Friction
PHXI05:LAWS OF MOTION

363377 Assertion :
Use of ball bearings between two moving parts of machine is a common practice.
Reason :
Ball bearings reduce vibrations and provide good stability.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363378 Assertion :
A horse has to pull a cart harder during the first few steps of his motion.
Reason :
Dynamic friction is larger than limiting friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363379 A body of mass \(2\;kg\) is placed on a rough horizontal plane. The coefficient of friction between the body and the plane is 0.2 .Then,

1 body will move in forward direction, if \(F=5 N\).
2 body will move in backward direction with an acceleration \(0.6\;m{s^{ - 2}},\) if force \(F = 3\;N.\)
3 body will be in rest condition, if \(F = 3\;N\) .
4 Both (1) and (3) are correct.
PHXI05:LAWS OF MOTION

363380 Assertion :
It is difficult to move a cycle along the road with its brakes on.
Reason :
Sliding friction is greater than roling friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363381 The situation shown in the figure, all strings and pulleys are ideal. If tension in the string connecting blocks \({A}\) and \({C}\) is \({\dfrac{1350}{11 n} {~N}}\). Find the value of \({n}\)
supporting img

1 1
2 3
3 5
4 9
PHXI05:LAWS OF MOTION

363377 Assertion :
Use of ball bearings between two moving parts of machine is a common practice.
Reason :
Ball bearings reduce vibrations and provide good stability.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363378 Assertion :
A horse has to pull a cart harder during the first few steps of his motion.
Reason :
Dynamic friction is larger than limiting friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363379 A body of mass \(2\;kg\) is placed on a rough horizontal plane. The coefficient of friction between the body and the plane is 0.2 .Then,

1 body will move in forward direction, if \(F=5 N\).
2 body will move in backward direction with an acceleration \(0.6\;m{s^{ - 2}},\) if force \(F = 3\;N.\)
3 body will be in rest condition, if \(F = 3\;N\) .
4 Both (1) and (3) are correct.
PHXI05:LAWS OF MOTION

363380 Assertion :
It is difficult to move a cycle along the road with its brakes on.
Reason :
Sliding friction is greater than roling friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363381 The situation shown in the figure, all strings and pulleys are ideal. If tension in the string connecting blocks \({A}\) and \({C}\) is \({\dfrac{1350}{11 n} {~N}}\). Find the value of \({n}\)
supporting img

1 1
2 3
3 5
4 9
PHXI05:LAWS OF MOTION

363377 Assertion :
Use of ball bearings between two moving parts of machine is a common practice.
Reason :
Ball bearings reduce vibrations and provide good stability.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363378 Assertion :
A horse has to pull a cart harder during the first few steps of his motion.
Reason :
Dynamic friction is larger than limiting friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363379 A body of mass \(2\;kg\) is placed on a rough horizontal plane. The coefficient of friction between the body and the plane is 0.2 .Then,

1 body will move in forward direction, if \(F=5 N\).
2 body will move in backward direction with an acceleration \(0.6\;m{s^{ - 2}},\) if force \(F = 3\;N.\)
3 body will be in rest condition, if \(F = 3\;N\) .
4 Both (1) and (3) are correct.
PHXI05:LAWS OF MOTION

363380 Assertion :
It is difficult to move a cycle along the road with its brakes on.
Reason :
Sliding friction is greater than roling friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363381 The situation shown in the figure, all strings and pulleys are ideal. If tension in the string connecting blocks \({A}\) and \({C}\) is \({\dfrac{1350}{11 n} {~N}}\). Find the value of \({n}\)
supporting img

1 1
2 3
3 5
4 9
PHXI05:LAWS OF MOTION

363377 Assertion :
Use of ball bearings between two moving parts of machine is a common practice.
Reason :
Ball bearings reduce vibrations and provide good stability.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363378 Assertion :
A horse has to pull a cart harder during the first few steps of his motion.
Reason :
Dynamic friction is larger than limiting friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363379 A body of mass \(2\;kg\) is placed on a rough horizontal plane. The coefficient of friction between the body and the plane is 0.2 .Then,

1 body will move in forward direction, if \(F=5 N\).
2 body will move in backward direction with an acceleration \(0.6\;m{s^{ - 2}},\) if force \(F = 3\;N.\)
3 body will be in rest condition, if \(F = 3\;N\) .
4 Both (1) and (3) are correct.
PHXI05:LAWS OF MOTION

363380 Assertion :
It is difficult to move a cycle along the road with its brakes on.
Reason :
Sliding friction is greater than roling friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363381 The situation shown in the figure, all strings and pulleys are ideal. If tension in the string connecting blocks \({A}\) and \({C}\) is \({\dfrac{1350}{11 n} {~N}}\). Find the value of \({n}\)
supporting img

1 1
2 3
3 5
4 9
PHXI05:LAWS OF MOTION

363377 Assertion :
Use of ball bearings between two moving parts of machine is a common practice.
Reason :
Ball bearings reduce vibrations and provide good stability.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363378 Assertion :
A horse has to pull a cart harder during the first few steps of his motion.
Reason :
Dynamic friction is larger than limiting friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363379 A body of mass \(2\;kg\) is placed on a rough horizontal plane. The coefficient of friction between the body and the plane is 0.2 .Then,

1 body will move in forward direction, if \(F=5 N\).
2 body will move in backward direction with an acceleration \(0.6\;m{s^{ - 2}},\) if force \(F = 3\;N.\)
3 body will be in rest condition, if \(F = 3\;N\) .
4 Both (1) and (3) are correct.
PHXI05:LAWS OF MOTION

363380 Assertion :
It is difficult to move a cycle along the road with its brakes on.
Reason :
Sliding friction is greater than roling friction.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI05:LAWS OF MOTION

363381 The situation shown in the figure, all strings and pulleys are ideal. If tension in the string connecting blocks \({A}\) and \({C}\) is \({\dfrac{1350}{11 n} {~N}}\). Find the value of \({n}\)
supporting img

1 1
2 3
3 5
4 9