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Brock University

Applied Computing

APCO 1P50

Caroline Starrs

Fall

Description

Assignment 1-2
2
1. A ball rolling down a hill at 4.0 m/s accelerates at 2.0 m/s . What is its velocity 5.0 s
later? [3A]
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2. An SUV with an initial velocity of 10 m/s [E] accelerated at 5.0 m/s [E]. How long will it
take the SUV to acquire a final velocity of 25 m/s [E]? [3A]
3. A car travelling at 10 m/s accelerates at 4.0 m/s for 8.0 s. What is the distance during
this interval? [3A]
4. A golf ball rolls up a steep hill. It is initially travelling at 25 m/s and slows down with an
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acceleration of -5.0 m/s . Find the displacement after 15 s. [4A]
5. A car accelerating at 5.0 m/s has a distance of 114 m in 6.0 s. What was its velocity at
the beginning of the interval? [4A] 6. A ball rolls at an initial velocity of 4.0 m/s up a hill. Five seconds later it is rolling down
the hill at 6.0 m/s. Find the following:
a. Its acceleration. [3A]
b. Its displacement at 5.0 s. [3A]
7. A subway train travelling west at 20 m/s is brought to a rest in 10 s. Find the
displacement of the subway train while it is coming to a stop. Assume uniform
acceleration. [3A]
8. A helicopter accelerates uniformly from 20 m/s [W] to 50 m/s [E] in 9.0 s. Find the
average velocity for the 9.0 s interval. [2T]
9. A diver jumps with an upward vel

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