# NEET Physics: Questions 848 - 851 of 2142

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## Question number: 848

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: 849

MCQ▾

### Question

Choose the correct statements -

(1) Kinetic friction is lesser than limiting friction.

(2) In rolling the surfaces at contact do not rub each other.

(3) If a body is at rest and no pulling force is acting on it, force of friction on it is zero.

(4) Kinetic friction is greater than limiting friction.

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

### Choices

Choice (4) Response

a.

1 and 3 are correct

b.

1, 2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

## Question number: 850

MCQ▾

### Question

A particle moving in a straight line is acted by a force, which works at a constant rate and changes its velocity from u to v in passing over a distance x. The time taken will be –

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 851

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

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