how much time does it take for a car to accelerate from a standing start to 22.2 m/s if acceleration is constant and the car covers 243 m during the acceleration?

Respuesta :

toporc
The speed changes uniformly with time. Therefore the average speed is given by:
[tex]\bar{v}=\frac{22.2}{2}=11.1\ m/s[/tex]
The time t taken to travel 243 m at 11.1 m/s is:
[tex]t=\frac{243}{11.1}=21.89\ s[/tex]
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