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Contact forces are...

Contact forces are

A

Magnetic force

B

Frictional force

C

Gravitational force

D

Muscular force

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The 50kg homogenous smooth sphere rests on the 30^(@) incline A and bears against the smooth vertical wall B.Calculate the contact forces at A and B.

What are contact forces? State different contact forces. What are non-contact forces? Explain different types of non-contact forces.

Knowledge Check

  • Which contact force is responsible for changing the state of motion of an object?

    A
    Magnetic force
    B
    Frictional force
    C
    Muscular force
    D
    Electrostatic force

  • The 50 kg homogeneous smooth sphere rests on incline A and bears against the smooth vertical contact forces at A and B is:

    A
    `N_(A)= 1000/sqrt(3) N, N_(B) = 500/sqrt(3)` N
    B
    `N_(A) = 1000/sqrt(3) N, N_(B) = 1000/sqrt(3) N`
    C
    `N_(A) = 500/sqrt(3) N, N_(B) = 500/sqrt(3) N`
    D
    `N_(A) = 500/sqrt(3) N, N_(B) = 1000/sqrt(3) N`

  • Assertion: Magnitude of the contact force is always greater than the magnitude of frictional force. Reason: Contact force is the resultant of the friction force and normal reaction.

    A
    If both assertion `&` Reason are True `&` the Reason is a corrrect explanation of the Asserion.
    B
    If both Assertion `&` Reason are True but Reason is not correct explanation of the Assertion.
    C
    If Assertion is Trie but the Reason is False.
    D
    If both Assertion `&` Reason are false

    • Similar Questions

    Explore conceptually related problems

    Answer the following questions Name any one contact force and non-contact force

    Which of the following are non - contact forces ? Magnetic force, Frictional force, Gravitional force, Muscular force, Electrostatic force.

    In the system shown in figure, the block A is released from rest. Find Contact force between ‘A’ and ‘B’.

    Which of the following are contact forces ? A. Friction B. Gravitational force C. Magnetic force D. Muscular force

    Assertion: Frictional force is the component of contact force parallel to the surface. Reason: Friction force always opposes the motion of a body.

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