The average speed of the bus which covers 120 km in 3 hours is 40 km/hr
Speed = Distance / Time = 120/3 = 40 km/hr
Speed is defined as the rate of change of distance with time. It has the dimension of distance by time. Thus, the SI unit of speed is given as the combination of the basic unit of distance and the basic unit of Time. Thus, the SI unit of speed is metre per second. Speed is a scalar quantity. As a result, it just has magnitude and no definite direction.
Velocity and agility: The two kinds of speed.
Speed of a moving object depends on two factors–distance moved and time taken.
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