# Laws of Motion-Force and Inertia (NEET Physics): Questions 11 - 14 of 57

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## Question number: 11

» Laws of Motion » Force and Inertia

MCQ▾

### Question

A stone of mass 1 kg tied to a light inextensible string of length L = 10/3 m is whirling in a circular path of radius L in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the suing is 4 and if g is taken to be 10m/sec2, the speed of the stone at the highest point of the circle is

### Choices

Choice (4) Response

a.

10√3m/Sec

b.

10 m/sec

c.

20 m/sec

d.

5√2m/sec

## Question number: 12

» Laws of Motion » Force and Inertia

MCQ▾

### Question

A car is moving in a circular path of radius 50 m with velocity of 100 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.

300.10

b.

10.70

c.

100.20

d.

223.60

## Question number: 13

» Laws of Motion » Force and Inertia

MCQ▾

### Question

An aircraft loops the loop of radius R = 600 m with a constant velocity v = 360 km/h. The weight of the flyer of mass m = 60 kg in the lower, upper and middle points of the loop will respectively be

### Choices

Choice (4) Response

a.

210 N, 700 N, 1400 N

b.

1600 N, 400 N, 1000 N

c.

700 N, 1400 N, 210 N

d.

2100 N, 700 N, 1400 N

## Question number: 14

» Laws of Motion » Force and Inertia

MCQ▾

### Question

A swimmer can swim in still water at a rate 4 km/h. If he swims in a river flowing at 3 km/h and keeps his direction (w. r. t. water) perpendicular to the current. Find his velocity w. r. t. the ground.

### Choices

Choice (4) Response

a.

11.40 km/hr

b.

15.05 km/hr

c.

30.20 km/hr

d.

17 km/hr

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