Kinematics (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 229 - 232 of 233

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Question number: 229

» Kinematics » Average Speed and Instantaneous Velocity

Appeared in Year: 2016

MCQ▾

Question

Two cars P and Q start from a point at the same time in a straight line and their positions are represented by and . At what time do the cars have the same velocity?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 230

» Kinematics » Uniformly Accelerated Motion

Appeared in Year: 2017

MCQ▾

Question

The and coordinates of the particle at any time are and respectively, where and are in meters and in seconds. The acceleration of the particle at is:

Choices

Choice (4) Response

a.

0

b.

c.

d.

Question number: 231

» Kinematics » Relative Velocity

Appeared in Year: 2017

MCQ▾

Question

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time . On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time. The time taken by her to walk up on the moving escalator will be:

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 232

» Kinematics » Uniform Circular Motion

Appeared in Year: 2017

MCQ▾

Question

One end of string of length is connected to a particle of mass and the other end is connected to a small peg on a smooth horizontal table. If the particle moves in circle with speed the net force on the particle (directed towards center) will be ( represents the tension in the string) –

Choices

Choice (4) Response

a.

b.

T

c.

d.

Zero

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