# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 882 - 885 of 2184

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## Question number: 882

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MCQ▾

### Question

The work done by a person in carrying a box of mass 10 kg through a vertical height of 10 m is 4900 J. The mass of the person is -

### Choices

Choice (4) Response

a.

40 kg

b.

130 kg

c.

50 kg

d.

60 kg

## Question number: 883

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MCQ▾

### Question

A rifle man, who together with his rifle has a mass of 100 kg, stands on a smooth surface fires 10 shots horizontally. Each bullet has a mass 10 gm and a muzzle velocity of 800 m/s. What velocity does rifle man acquire at the end of 10 shots?

### Choices

Choice (4) Response

a.

0.3 m/s

b.

0.5 m/s

c.

1.2 m/s

d.

0.8 m/s

## Question number: 884

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MCQ▾

### Question

Choose the correct statements -

(1) For equilibrium of a body under the action of concurrent forces

(2) If the downward acceleration of the lift is a = g, then the body will experience weightlessness.

(3) If the downward acceleration of the body is a > g, then the body will rise up to the ceiling of lift

(4) If the downward acceleration of the lift is a > g, then the body will experience weightlessness.

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.

1 and 2 are correct

d.

2 and 4 are correct

## Question number: 885

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MCQ▾

### Question

A force F = (7 - 2x + 3x 2) N is applied on a 2 kg mass which displaces it from x = 0 to x = 5 m. Work done in joule is -

### Choices

Choice (4) Response

a.

135

b.

35

c.

70

d.

270