A train runs at 52.5 mph. If a command to stop the train is being sent to the train operator, what is the final velocity? The brakes have a uniform rate of 2.6 ft/sec2.
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A: X = 0 m U = 10 m/s t = 5.80 s a = 0 m/s²
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- A pilot flies in a straight path for 1 h 30 min. She then makes a course correction, heading 10 degrees to the right of her original course, and flies 2 h in the new direction. If she maintains a constant speed of 660 mi/h, how far is she from her starting position? Your answer is _______________ mi Enter your answer rounded to two decimal places.A particle moves according to a law of motion s = f(t), t ≥ 0, where t is measured in seconds and s in feet. f(t) = 0.01t4 − 0.02t3 a) When, for 0 ≤ t < ∞, is the particle speeding up? (Enter your answer using interval notation.) b) When, for 0 ≤ t < ∞, is it slowing down? (Enter your answer using interval notation.)A person drops a rock from the edge of a cliff that is 1350 ft high. The initial acceleration is a=−32 ft/sec^2. 1. What is the velocity equation? Use t as the variable and v for the velocity. 2. What is the displacement equation? Use t as the variable and s as the displacement. 3.What time did it hit the ground? (Hint: s=0) 4. What was the velocity just before impact?
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