A runner in a race takes 2.7 seconds to go from the 40 meter mark to the 70-meter mark. (a) What is the runner's speed? (b) How far would the runner go in 8 seconds if this speed is maintained? (c) How long did it take the runner to cover the first 40 m (assuming the same speed was maintained)?
[Ques. 2] Devil's Tower National Monument is 1280 ft high. Convert this height to meters.
[Ques. 3] The Gateway Arch in St. Louis, Missouri is 630 feet tall. Express this distance in meters and in kilometers.
[Ques. 4] An aircraft undergoes a constant acceleration of 11 m/s2 for 12 seconds. The distance traveled is __________.
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[Ques. 5] A pilot punches the throttle lever forward, changing his speed from 0 m/s to 40 m/s in 7 seconds. The acceleration of the racecar is _________.
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[Ques. 6] A glider is in a banked curve with a radius of 125 m radius curve at a constant speed of 10 m/s. Its acceleration is __________.
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[Ques. 7] A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from rest. The acceleration of the racecar is __________.
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[Ques. 8] A racecar driver steps on the gas, changing his speed from 10 m/s to 30 m/s in 4 seconds. The acceleration of the racecar is _________.
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[Ques. 9] A racecar goes around a 200 m radius curve at a constant speed of 40 m/s. Its acceleration is __________.
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[Ques. 10] The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The velocity acquired after starting from rest is __________.
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