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Statement I: If a car is taking a turn o...

Statement I: If a car is taking a turn on a banked road, then the normal contact force between car and road is greater than the weight of car (neglecting friction).
Statement II: On a banked road, horizontal component of normal contact force between car and road provides necessary centripetal force. Assume friction is absent.

A

Statement I is true, statement II is true , statement II is a correct explanation for statement I.

B

Statement I is true, statement II is true , statement II is not a correct explanation for statement I.

C

Statement I is true, statement II is false.

D

Statement I is false, statement II is true.

Text Solution

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The correct Answer is:
B
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This question has statement-I and statement-II of the four choices given after the statement.Choose the one that best describes the two statements Statement-I is true Statement-II is true Statement-II is a correct explanation of statement-I Statement-I is true Statement-II is true Statement-II is not a correct explanation of statement-I Statement--I is true , Statement-II is false Statement-I is false statement-II is true Both statement-I and statement-II are false Statement - I : On a banked curved track, vertical component of normal reaction provides the necessary centripetal force. Statement- II : Centripetal force is not always required for turning.

When a car takes a circular turn on a level road, which force acts as the centripetal force?

Knowledge Check

  • While taking a turn on a plane horizontal road, a car can skid due to

    A
    gravitational force
    B
    absence of necessary centripetal force
    C
    rolling friction between the tyre of the car and the road
    D
    reaction force of the road

  • Statement I: When a person walks on a rough surface, the net force exerted by surface on the person in the direction of his motion. Satement II: It is the force exerted by the road on the person that causes the motion.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true.

  • Statement I : Coefficient of friction can be greater than unity. Statement II : Frictional force depends on normal reaction and ratio of force of friction and normal reaction cannot exceed unity.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
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