Kinematics-Motion in a Straight Line (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 40 - 44 of 47

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Question number: 40

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A metal sphere is hung by a string fixed to a wall. The sphere is pushed away from the wall by a stick. The forces acting on the sphere are shown in the second diagram. Which of the following statements is wrong?

 metal sphere fixed at wall

Metal Sphere Fixed at Wall

metal sphere fixed at wall

In above fig we shows that metal sphere fixed at the wall, as we apply some force on it then motion is taking place, here angle is .

Choices

Choice (4) Response

a.

+ + = 0

b.

T 2 + P 2 + W 2 = 0

c.

T2 = P2 + W2

d.

p = w

Passage

A particle moves along x-axis and its acceleration at any time t is a = 2 sin (πt), where t is in seconds and a is in m/s 2. The initial velocity of particle (at time t = 0) is u = 0.

Question number: 41 (1 of 3 Based on Passage) Show Passage

» Kinematics » Motion in a Straight Line

MCQ▾

Question

the distance travelled (in meters) by the particle from time to t = 0 to t = 1 is will be-

Choices

Choice (4) Response

a.

4/π

b.

2/π

c.

1/π

d.

None of the above

Question number: 42 (2 of 3 Based on Passage) Show Passage

» Kinematics » Motion in a Straight Line

MCQ▾

Question

The magnitude of displacement (in meters) by the particle from time t = 0 to t = t will be –

Choices

Choice (4) Response

a.

-

b.

- +

c.

d.

None of the above

Question number: 43 (3 of 3 Based on Passage) Show Passage

» Kinematics » Motion in a Straight Line

MCQ▾

Question

The distance travelled (in meters) by the particle from time t = 0 to t = t will be –

Choices

Choice (4) Response

a.

- +

b.

-

c.

d.

All of the above

Question number: 44

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A motor car is travelling at 30 m/s on a circular road of radius 500 m. It is increasing its speed at the rate of 2 m/s 2. Its net acceleration is (in m/s 2) –

Choices

Choice (4) Response

a.

0

b.

1.8

c.

2

d.

2.7

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