Average speed : `("total distance")/("time taken")` : : ……………. : `("displacement")/("time taken")

A particle goes from A to B with a speed of 40km//h and B to C with a speed of 60Km//h . If AB = 6BC , the average speed in km//h between A and C is- [Hint : Average speed = ("total distance travelled")/("time taken")]

A particle goes from A to B with a speed of 40km//h and B to C with a speed of 60Km//h . If AB = 6BC , the average speed in km//h between A and C is- [Hint : Average speed = ("total distance travelled")/("time taken")]

(A):Average speed is equal to total distance travelled divided by total time taken . (R ):The average speed of an object may be equal to arithmetic mean of individual speed

(A) : Average speed is equal to total distance travelled divided by lotit time taken. (R ) : The average speed of an object may be to arithmetic, mean of individual speed.

A body cover 20 m in 2 s and another 20 m in next 4s. Arrange the following steps in sequential order to find th average velocity of the body . (A) Find the displacements of the body in first 2s and next 4 s from the given data. (B) find the displacements of the body . (C) find the total time taken by the body to complete the total displacement . (D) Use the formula, average velocity = ("total displacement")/(" Total time taken")

Assertion : The average speed of an object may be equal to arithmetic mean of individual speed. Reason : Average speed is equal to total distance travelled per total time taken.

Assertion: The Speedometer of a car or a motor-cycle measures its average speed. Reason: Average velocity is equal to total displacement divided by total time taken.