27. A driver of a car going 25.0 m/s suddenly notices a stop sign 40.0 m ahead. The braking deceleration rate of the car is 10.0 m/s², but it takes the driver 0.75 s (reaction time) to get the brakes applied. (a) Determine if the car runs the stop sign. (b) Determine the maximum initial speed at which the car could be moving and manage to stop at the sign.

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Q: 23. A company estimates that the marginal cost (in dollars per item) of producing x items is 1.92 –…

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Q: A car rounds the clover-leaf at 13 "/s as it enters the 400 meter-long merge zone. a) What…

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A: Initial speed of the car is V = 70.4 km/h  Reaction time is t = 0.520 s

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Q: While entering a freeway, a car accelerates from rest at a rate of 2.40 m/s2 for 12.0 s. (a) Draw a…

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Q: (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a…

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Q: 12. Car B is traveling a distance d ahead of car A. Both cars are traveling at 60 "/s when the…

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Projectile Motion