Laws of Motion (NEET Physics): Questions 9 - 13 of 116

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Question number: 9

» Laws of Motion » Force and Inertia

MCQ▾

Question

An aircraft loops the loop of radius R = 500 m with a constant velocity v = 360 km/h. The weight of the flyer of mass m = 70 kg in the lower, upper and middle points of the loop will respectively be

Choices

Choice (4) Response

a.

700 N, 1400 N, 210 N

b.

2100 N, 700 N, 1400 N

c.

1400 N, 700 N, 2100 N

d.

210 N, 700 N, 1400 N

Question number: 10

» Laws of Motion » Force and Inertia

MCQ▾

Question

The roadway bridge over a canal is the form of an arc of a circle of radius 20 m. What is the minimum speed with which a car can cross the bridge without leaving contact with the ground at the highest point (g = 9.8 m/s 2)

Choices

Choice (4) Response

a.

14 m/s

b.

7 m/s

c.

5 m/s

d.

289 m/s

Question number: 11

» Laws of Motion » Force and Inertia

MCQ▾

Question

A cane filled with water is revolved in a vertical circle of radius 0.5 m and the water does not fall down n maximum period of revolution must be –

Choices

Choice (4) Response

a.

1.45

b.

14.15

c.

4.25

d.

2.45

Question number: 12

» Laws of Motion » Force and Inertia

MCQ▾

Question

A body of mass 20 kg moving with a velocity of 5 m/s is to be stopped by a resistive force in 25 sec, the force will be

Choices

Choice (4) Response

a.

10 N

b.

5 N

c.

100 N

d.

50 N

Question number: 13

» Laws of Motion » Force and Inertia

MCQ▾

Question

A car is moving in a circular path of radius 100 m with velocity of 200 m/sec such that in each sec its velocity increases by 100 m/s, the net acceleration of car will be - (in m/sec)

Choices

Choice (4) Response

a.

10 √7

b.

100 √17

c.

100 √3

d.

10 √3

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