Question

A car moving on a straight road is in
(A) Curvilinear motion
(B) Rectilinear motion
(C) Periodic motion
(D) Rotational motion

Answer 1

Hint : An object is said to be in motion when it is not at rest. An object is considered to be in motion, when it is continuously changing its position with respect to some steady and stationary reference point with respect to time. There are various types of motion. Here we will follow all the given terms and then will find out the correct answer.

Complete Step By Step Answer:
Curvilinear motion – it can be expressed as the motion of an object which is moving on the curved path.
Rectilinear motion – It can be defined as the motion of an object which is moving on the straight path.
Periodic motion – It can be defined as the motion which is repeated in the equal intervals of time.
Rotational motion – It can be defined as the motion of an object which moves in the circle about the single line.
Hence, from the given multiple choices – the option B is the correct answer.

Additional Information:
The motion in which an object changes its position at irregular intervals of time is known as the non-periodic motion. The motion of an object does not repeat itself with the specific time interval. In other simple words, an object traveling does not travel an equal distance in equal intervals of time.

Note :
The motion can also be described in the terms of the displacement, the distance, the velocity, acceleration, speed and the time. Remember an oscillatory motion are always the periodic motion whereas all the periodic motions are not always the oscillatory motion.