Laws of Motion-Force and Inertia (NEET Physics): Questions 41 - 44 of 56

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Question number: 41

» Laws of Motion » Force and Inertia

MCQ▾

Question

A body of mass 50kg resting on a smooth inclined plane is connected by a massless inextensible string passing over a smooth pulley, at the top of the inclined plane have another mass of 40 kg as shown in the figure. The distance through which 50 kg mass fall in 10 sec will be - (The angle of the inclined plane is 30°)

Body of mass 50kg is on rest at inclined plane

Body of Mass 50kg Is on Rest at Inclined Plane

Formation of pulley system on the inclined plane

Choices

Choice (4) Response

a.

1.304 m

b.

81.5 m

c.

13.04 m

d.

1.63 m

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

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