Motion

From the given υ – t graph, the straight line parallel to time axis can be inferred that the object is

• in uniform motion

• at rest

• in non-uniform motion

• moving with uniform acceleration

Suppose a boy is enjoying a ride on a merry-go-round which is moving with a constant speed of 10 ms-1 It implies that the boy is

• at rest

• moving with no acceleration

• in accelerated motion

• moving with uniform velocity

Four cars A, B, C and D are moving on a levelled road. Their distance versus time graphs are shown in the adjacent figure. Choose the correct statement.

• Car A is faster than car D.

• Car B is the slowest.

• Car D is faster than car C.

• Car C is the slowest.

Which of the following figures correctly represents uniform motion of a moving object?

• a

• b

• c

• d

Velocity-time graph of an object is given below. The object has

• Uniform velocity

• Uniform speed

• Uniform retardation

• Variable acceleration

According to the given velocity-time graph, the object

• is moving with uniform velocity

• has some initial velocity

• is moving uniformly with some initial velocity

• is at rest

The ratio of speed to the magnitude of velocity when the body is moving in one direction is

• Less than one

• Greater than one

• Equal to one

• Greater than or equal to one

Which of the following graphs is not possible?

• a

• b

• c

• d

A body moving in a straight line has a uniform motion if it travels ……………. distance in …………… intervals of time.

• equal equal

• equal unequal

• unequal equal

• all of the above

Acceleration is vector quantity and its SI unit is ……………..

• m

• m/s

• m/s2

• m2/s