﻿ A particle has arbitrary motion in the space. Which of the following statements are true or false?(i)  Total length of path is always equal to magnitude of displacement of particle.(ii)  Average speed is always less than instantaneous speed.(iii) Position of particle at any instant is given by (iv) Average acceleration of motion is zero if initial and Final velocity of a particle is same. from Physics Motion in A Plane Class 11 Manipur Board

## Book Store

Currently only available for.
CBSE Gujarat Board Haryana Board

## Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12

A particle has arbitrary motion in the space. Which of the following statements are true or false?
(i)  Total length of path is always equal to magnitude of displacement of particle.
(ii)  Average speed is always less than instantaneous speed.
(iii) Position of particle at any instant is given by
(iv) Average acceleration of motion is zero if initial and Final velocity of a particle is same.

(i) False, the total length of path is either greater or equal to magnitude of displacement. This statement is true only if the particle is moving in a straight path.

(ii) False, average speed may be less, equal or greater than the speed at any instant.

(iii) False, the given relation is true only for uniform accelerated motion.

(iv)True. For a particle moving with a constant velocity, acceleration will remain the same.

114 Views

What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.

814 Views

What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
1212 Views

Give three examples of scalar quantities.

Mass, temperature and energy
769 Views

What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
835 Views

Give three examples of vector quantities.

Force, impulse and momentum.
865 Views