An engineer is setting a speed limit on a road. She wants a car to be able to stop in 191ft and knows that the maximum rate at which a car can safely brake is 16.0ft/s2.   What initial speed (in given units) will allow the car to come a stop at the stop sign when braking with this acceleration?     Could a car traveling 60mph come to a stop before the stop sign?

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Q: Different animals have very different capacities for running. A horse can maintain a top speed of 20…

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A: Length of track = 2000 mSpeed of tortoise = 1.6m/sSpeed of hare = 5m/s, 8m/s

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Q: A typical sneeze expels material at a maximum speed of 44.9 m/s. Suppose the material begins inside…

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Q: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.…

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Q: Cheetahs can accelerate to a speed of 20.2 m/s in 2.65 s and can continue to accelerate to reach…

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A: Given data: The speed of the student is u=5.0 m/s. The distance of the student is s=40.0 m. The…

Q: A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.9s.  a) What is the car's…

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Q: You are standing on a circular track that is 315 m long. You begin jogging at the start line and…

A: given : (a) length of track l=315 m (b) distance travelled by sprinter d = 200m time taken t=21.75 s

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Q: Highway safety engineers design "soft" crash barriers so that cars hitting them will slow down at a…

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Q: While standing at the edge of the roof of a building, a man throws a stone upward with an initial…

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