NEET Physics: Questions 191 - 195 of 2142

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Question number: 191

MCQ▾

Question

A car driver is negotiating a curve of radius 200 m with a speed of 15 km/hr. The angle through which he has to lean from the vertical will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 192

MCQ▾

Question

A particle is moving in a circular path with velocity varying with time as v = 1.5t-+ 2t. If the radius of circular path is 2 cm. the angular acceleration at t = 2 sec will be –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 193

MCQ▾

Question

The maximum speed at which a car can turn round a curve of 30 meter radius on a level road if the coefficient of friction between the tiers and the road is 0.4, will be –

Choices

Choice (4) Response

a.

11.76 m/s

b.

17.84 m/s

c.

9.02 m/s

d.

10.84 m/s

Question number: 194

MCQ▾

Question

A particle is moving in a plane with a velocity given by, u = u0 i + (∞a cos ∞t) j, where i and j are unit vectors along x and y-axes respectively. If the particle is at the origin at t = 0, then its distance from the origin at time t = 3π/2∞ will be

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 195

MCQ▾

Question

A particle moves in a circle of radius 10cm with a linear speed of 20m/s. The angular velocity will be –

Choices

Choice (4) Response

a.

b.