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Question (11)

QN0035122

To complete the vertical circle the body must be projected with minimum velocity of at the lowest point. ( length of the string)

(A)
(B)
(C)
(D)

Correct Answer: C

Explanation:

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Question (12)

QN0035123

A body starts slipping down an incline and moves half metre in half second. How long will it take to move the next half?

(A)
(B)
(C)
(D)

Correct Answer: A

Explanation:

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Question (13)

QN0035124

If be the coefficient of friction between the block and the cart, horizontal acceleration of the cart that is required to prevent block from falling is:

(A)
(B)
(C)
(D)

Correct Answer: B

Explanation:

.

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Question (14)

QN0035125

Two particles of equal mass are connected to a rope of negligible mass such that one is at end and other dividing the length of rope in the ratio from . The rope is rotated about end in a horizontal plane. Ratio of tensions in the smaller part to the other is (ignore effect of gravity)

(A)
(B)
(C)
(D)

Correct Answer: A

Explanation:

or

.

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Question (15)

QN0035126

In figure the mass of the block and . The acceleration of the block if is

(A)
(B)
(C)
(D)

Correct Answer: C

Explanation:

and

Now,

After solving above equations, we get .

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Question (11)

To complete the vertical circle the body must be projected with minimum velocity of at the lowest point. ( length of the string)

Explanation:

Link:

Question (12)

A body starts slipping down an incline and moves half metre in half second. How long will it take to move the next half?

Explanation:

Link:

Question (13)

If be the coefficient of friction between the block and the cart, horizontal acceleration of the cart that is required to prevent block from falling is:

Explanation:

Link:

Question (14)

Two particles of equal mass are connected to a rope of negligible mass such that one is at end and other dividing the length of rope in the ratio from . The rope is rotated about end in a horizontal plane. Ratio of tensions in the smaller part to the other is (ignore effect of gravity)

Explanation:

Link:

Question (15)

In figure the mass of the block and . The acceleration of the block if is

Explanation:

Link:

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