Laws of Motion-Force and Inertia (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 42 - 45 of 57

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Question number: 42

» Laws of Motion » Force and Inertia

MCQ▾

Question

A rope of length 25 m and linear density 2 kg/m is lying length wise on a horizontal smooth table. It is pulled by a force of 25 N. The tension in the rope at the point 7 m away from the point of application, will be –

Choices

Choice (4) Response

a.

11 N

b.

36 N

c.

18 N

d.

All of the above

Question number: 43

» Laws of Motion » Force and Inertia

MCQ▾

Question

Choose the correct options -

(1) Inertia. mass (2) 1 newton = 10 5 dyne

(3) Thrust on rocket f = ∆M/∆t v - Mg

(4) Apparent weight of a body in the accelerated lift is W = m (g + a). …, . ,

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

2 and 4 are correct

b.

1 and 3 are correct

c.

1, 2 and 3 are correct

d.

1 and 2 are correct

Question number: 44

» Laws of Motion » Force and Inertia

MCQ▾

Question

Two blocks of mass m = 6 kg and M = 4 kg are in contact on a frictionless table. A horizontal force F (= 5N) is applied to m. The force of contact between the blocks, will be

Choices

Choice (4) Response

a.

2N

b.

4N

c.

IN

d.

5N

Question number: 45

» Laws of Motion » Force and Inertia

Assertion-Reason▾

Assertion (Ꭺ)

In the given figure, Equation

Reason (Ꭱ)

In the given figure, Equation

Finding acceleration in the pulley system

Finding Acceleration in the Pulley System

What is the acceleration in this system

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

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