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Fundamentals of acceleration. Homework and Review Questions. Q1. If a bicycle has an average acceleration of -0.44 m/s 2 , and its initial forward velocity is 8.2 m/s, how long will it take the cyclist to bring the bicycle to a complete stop?. Q2.
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Fundamentals of acceleration Homework and Review Questions
Q1 If a bicycle has an average acceleration of -0.44 m/s2, and its initial forward velocity is 8.2 m/s, how long will it take the cyclist to bring the bicycle to a complete stop?
Q2 What is the acceleration of Billy’s MPV, if it started at 0.50 m/s and accelerated up to 3.25 m/s in 2.5 second?
Q3 A school bus can accelerate from a complete stop at 1.3 m/s2. How long will it take the bus to reach a velocity of 12.1 m/s?
Q4 A rocket moving at 15 m/s, accelerates for 5.2 seconds at a rate of 3.1 m/s2. Find the final velocity
Q5 While driving at an average velocity of 15.6 m/s down the road, a driver slams on brakes to avoid hitting a squirrel. The car stops completely in 4.2 seconds. What is the acceleration of the car?
Q6 On a dark and scary night, Mr. Baker was walking down the street at 5.234 m/s. He heard a horrible sound of hundreds of shuffling feet behind him and increased his speed to a new 78.985 m/s. What was the amount of time (in minutes) needed to increase his speed, if his rate of acceleration was 1.9 m/s2 ?
Q7 A sports car is advertised as being able to go from 0 to 60 in 6.00 seconds. If 60 mph is equal to 27 m/s, what is the sports car’s average acceleration?
Question 7 An object is thrown upwards from a bridge at 15.9 m/s. How fast is it going after 90 seconds?
Q8 If a bicycle has an average acceleration of -0.44 m/s2, and its initial forward velocity is 8.2m/s, how long will it take the cyclist to bring the bicycle to a complete stop?
Q9 An airliner has a cruising velocity of 132 m/s. What is the plane’s average acceleration if it takes the plane 15 minutes to reach its cruising velocity from when it was at rest on the runway?
Example A piece of the golden gate bridge comes loose and falls towards the water. Assuming no air resistance, where and how fast will the object be traveling in 4.5 seconds?
Question #3 A coin falls from rest from the balcony of a building. If it takes 2.7 s for it to hit the ground, what is the final velocity of the coin?
Problem # 2 A penny dropped from the top of Empire State Building, falls at 9.8 m/s2, if you ignore air resistance. If it started from rest, how long would it take for the penny to be traveling 50 m/s?
A ball that rolls off a desk and falls to the ground. At what point is the ball in free-fall? Explain why