ABHYAS | Self Learning | Testing Platform

Q.1

A person is running along a circular track of area 64 $pi m^2$ . if he is in uniform circular motion,then the average speed of the person in 4 s of time interval will be _____________________.

A.

$pi m s^{-1}$

B.

400 $pi cm s^{-1}$

C.

4 $pi cm s^{-1}$

D.

40 $pi m s^{-1}$

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Q.2

Choose the wrong statement.

A.

Retardation is a vector quantity

B.

Acceleration due to gravity is a vector quantity

C.

Average speed is a vector quantity

D.

Displacement is a vector quantity

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Q.3

The distance-time graphs for two vehicles x and y are straight lines.The slope of graph for x with time axis more than that for y.

A.

The speed of x is more than that of y

B.

The speed of y is more than tat of x

C.

x is uniformly accelerated while y is not

D.

The distance covered by y is more than that by x in the same interval of time

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Q.4

If the time-displacement graph of a paticle is parallel to the time-axis,the velocity of the particle is

A.

firstly infinity and then comes to zero

B.

Constant

C.

equal to acceleration of the body

D.

zero

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Q.5

The distance time graph of a body is shown indicates

A.

The body is moving with constant acceleration

B.

The velocity is constant

C.

The body starts with some velocity then moves with some different velocity

D.

The body starts with constant velocity. The body then accelerates and finally comes to rest

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Q.6

the graph shows which type of motion

A.

Motion with uniform speed

B.

Motion with uniform acceleration

C.

Motion with non uniform acceleration

D.

Motion with non uniform velocity

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Q.7

In the distance time graph shown find the velocity of the bus as it goes from C to D

A.

4 m/s

B.

1 m/s

C.

0 m/s

D.

2 m/s

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Q.8

The breaks applied to a sooter produces a retardation of $6m/s^2$ .if the sooter takes 2 seconds to stop after applying the breaks,the distance it covers during this time is-

A.

12m

B.

10m

C.

8m

D.

6m

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Q.9

What is the average speed in the distance time graph given

A.

10m/s

B.

0m/s

C.

5m/s

D.

15m/s

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Q.10

A train of length 200 m is moving along a circular path. If it completes one rotation with with a speed of 54 km/hr , then the time taken by it to trace the path is __________________ seconds.

A.

25

B.

13.33

C.

26.66

D.

26

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Attention !!!!!