NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-I>Q 3.2

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A lift is coming from $8^{t h}$ floor and is just about to reach $4^{t h}$ floor. Taking ground floor as Origin and positive direction upwards for all quantities, which one of the following is correct?

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Important Questions on Motion in a Straight Line

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11th CBSE

IMPORTANT

NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-I>Q 3.3

In one-dimensional motion, instantaneous speed

v

satisfies

0 \leq v < v_{0}

.

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NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-I>Q 3.4

A vehicle travels half the distance

L

with speed

v_{1}

and the other half with speed

v_{2}

, then its average speed is

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IMPORTANT

NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-I>Q 3.5

The displacement of a particle is given by

x = (t - 2)^{2}

where

x

is in meters and

t

in seconds. The distance covered by the particle in first

4

second is:

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NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-I>Q 3.6

At metro station, a girl walks up a stationary escalator in time

t_{1}

. If she remains stationary on escalator, then the escalator take her up in time

t_{2}

. The time taken by her to walk up on the moving escalator will be:

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NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-II>Q 3.7

The variation of quantity $A$ with quantity $B$ , plotted in the figure. Describe the motion of a particle in a straight line.

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NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-II>Q 3.8

A graph of $x$ versus $t$ shown in $x$ figure. Choose correct alternatives from below.

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NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-II>Q 3.9

For the one-dimensional motion, described by

x = t - \sin t

.

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IMPORTANT

NCERT Exemplar Physics - Class 11>Chapter 3 - Motion in a Straight Line>MCQ-II>Q 3.10

A spring with one end attached to a mass

m

and other end to a rigid support is stretched and released.