b. How far did she travel from where she started? 2. Anthony is riding his bicycle down the street at 6.5 m/s when a squirrel runs out in front of him, causing him to apply his brakes and stop abruptly. The magnitude of his acceleration is 4.2 m/s while he is slowing down. a. Will his acceleration be in the same direction or the opposite direction as his velocity? b. How long does it take for him to stop once he applies the brakes? c. How far does he travel during the time he is applying the brakes? 3. A driver getting onto a freeway onramp steps hard on the gas pedal to get her car up to speed. She starts at a speed of 10.0 m/s and accelerates at a rate of 6.25 m/s' for 4.50 seconds. a. What is her final speed? b. What distance does she travel while she is accelerating? 4. A rocket is designed to accelerate at a rate of 70.0 m/s. a. How much time would it take for that rocket to accelerate from 10.0 m/s to 195 m/s? b. How far would the rocket travel while doing this? 5. A car accelerates from rest to a speed of 30.0 m/s over a distance of 155 m, with constant acceleration. a. What is the magnitude of its acceleration? b. How much time did it take? 6. An advertisement claims that a car moving at 25.0 m/s can stop in a distance of 20.0 m. a. While stopping, is the car's acceleration going to be in the same direction or the opposite direction as its velocity? b. What is the magnitude of the car's average acceleration? C. How much time would it take for the car to come to a stop? 12:02 ENG 1/30/2
b. How far did she travel from where she started? 2. Anthony is riding his bicycle down the street at 6.5 m/s when a squirrel runs out in front of him, causing him to apply his brakes and stop abruptly. The magnitude of his acceleration is 4.2 m/s while he is slowing down. a. Will his acceleration be in the same direction or the opposite direction as his velocity? b. How long does it take for him to stop once he applies the brakes? c. How far does he travel during the time he is applying the brakes? 3. A driver getting onto a freeway onramp steps hard on the gas pedal to get her car up to speed. She starts at a speed of 10.0 m/s and accelerates at a rate of 6.25 m/s' for 4.50 seconds. a. What is her final speed? b. What distance does she travel while she is accelerating? 4. A rocket is designed to accelerate at a rate of 70.0 m/s. a. How much time would it take for that rocket to accelerate from 10.0 m/s to 195 m/s? b. How far would the rocket travel while doing this? 5. A car accelerates from rest to a speed of 30.0 m/s over a distance of 155 m, with constant acceleration. a. What is the magnitude of its acceleration? b. How much time did it take? 6. An advertisement claims that a car moving at 25.0 m/s can stop in a distance of 20.0 m. a. While stopping, is the car's acceleration going to be in the same direction or the opposite direction as its velocity? b. What is the magnitude of the car's average acceleration? C. How much time would it take for the car to come to a stop? 12:02 ENG 1/30/2
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