The average speed of the car is 19.62 km/hr.
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find the average speed of the car
The given parameters;
initial velocity of the car, u = 25 km/hr
time of motion of the car, t= 1.5 hr
final velocity, v = 21 km/h
time of motion, = 1.25 hr
The average speed of the car is calculated as follows;
[tex]average \ velocity = \frac{total \ distance }{total \ time} \\\\average \ velocity = \frac{(25 km/h \times 1.5h)+(21km/h\times 1.25hr)}{(1.5h + 0.5h + 1.25h)} \\\\average \ velocity = 19.62 \ k m/hr[/tex]
Thus, the average speed of the car is 19.62 km/hr.
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