1.) A fast moving vehicle travelling at a speed of 33.9 m/s comes up behind another...

1.) A fast moving vehicle travelling at a speed of 33.9 m/s comes up behind another vehicle which is travelling at a slower, constant speed of 15.4 m/s. If the faster vehicle does not begin braking until it is 15.8 meters away from the car in front of it, what is the minimum acceleration that the faster car must exhibit if it is to avoid colliding with the car in front? Assume that both cars are travelling in the positive direction. 2.)A college student stands on a balcony of a sorority house a distance of 10.0 meters above the ground. Her sorority sister is on the ground below the balcony, and tosses her keys straight upward toward her friend who catches the keys 4.9 seconds later. With what speed were the keys initially thrown?

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genius_generous answered 3 months ago

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