State True or False - “The average speed and average velocity of a particle are equal if it travels in a straight line without changing its direction of motion”

The distance covered by a body along the X-axis is given by x=2t^3 + 5t^2 + t where ‘t’ is the time measured in ‘s’while x is in m.If the average velocity of a particle is equal to its instantaneous velocity,what type of motion it represents?

Read each statement below carefully and state with reasons,if it is true or false: a)the magnitude of a vector is always a scalar. b)Each component of a vector is always a scalar. c)The total path length is always equal to the magnitude of the displacement vector of a particle. d)the average speed of a particle (defined as total path length divided by the time taken to cover the path) is either greater or equal to the magnitude of average velocity of the particle over the same interval of time. e)three vectors not lying in a plane can never add up to give a null vector.

The magnitude of average velocity is equal to average speed.In which case this condition is staisfied?

Velocity is defined as the rate of change of displacement. When does the average velocity become equal to the instantaneous velocity?

State whether True or False:- For an electromagnetic wave the ratio of E / B is equal to speed of light.