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torisob [31]
4 years ago
14

To qualify for the indianapolis 500 race, a car must average 350 km/hr for four laps. if a driver averages 320 km/hr for the fir

st two laps, what average speed must be achieved for the final two laps in order to qualify?
Physics
1 answer:
Mashutka [201]4 years ago
8 0
In this case, the car velocity is 320km/hr(speed1) at the two laps(time1) and you want to make its average velocity(speed2) for the last 2 laps(time2) to fulfill the condition of 350km/h average speed. Then the formula to solve this question would be:

average 4 laps speed * laps = speed1 * laps1 + speed2 * laps2
350km/h * 4= (320km/h*2 )+ (speed2 *2)
2*speed 2= 1400km/h - 640km/h= 760km/h
speed2= 380km/h
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