A bus travels 80km due south in 2 hours.it then travels 100km due west in 3 hours.what is the average velocity of bus?
4 answers
The average velocity of the bus is (80 km/2 h) + (100 km/3 h) = 66.67 km/h.
speed is a scalar
velocity is a vector (both magnitude AND DIRECTION)
V = -(100 * 10^3 meters / 180 seconds) i - (80*10^3 meters / 120 seconds) j
velocity is a vector (both magnitude AND DIRECTION)
V = -(100 * 10^3 meters / 180 seconds) i - (80*10^3 meters / 120 seconds) j
sorry 180 * 60 seconds and 120 * 60 seconds
( I assumed minutes not hours )
( I assumed minutes not hours )
20
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