Question

(a) Define speed. What is the SI unit of speed?
(b) What is meant by (i) average speed, and (ii) uniform speed?

Answer 1

Explanation:

the average speed of a body is total distance travelled divided by total time taken

If an moving object covers equal distance in equal interval of time is known as uniform speed

Answer 2

Answer :-

• Speed is defined as the rate of change of distance with time. It has the dimension of distance by time.

• SI Unit of speed is meter per second or m/s.