1. (From an old exam) The graph below shows the velocity of a car (in kilometers per hour) as a function of time (in seconds); all parts of this question refer to this graph.

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Chapter1: Introduction: The Nature Of Science And Physics
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1. (From an old exam) The graph below shows the velocity of a car (in kilometers per hour) as a function of
time (in seconds); all parts of this question refer to this graph.
v (km/h)
60
50
40
30
20
10
0
A
B
●
D
5 10 15 20 25 30 35 40 45 50
t (s)
a) What is the car's average acceleration, in m/s2, during the interval from t = 0 to t = 10 s? Show your work.
b) What is the car's instantaneous acceleration at t = 40 s?
CONTINUED ON NEXT PAGE
c) How far did the car travel between t = 35 s and t = 50 s?
Transcribed Image Text:1. (From an old exam) The graph below shows the velocity of a car (in kilometers per hour) as a function of time (in seconds); all parts of this question refer to this graph. v (km/h) 60 50 40 30 20 10 0 A B ● D 5 10 15 20 25 30 35 40 45 50 t (s) a) What is the car's average acceleration, in m/s2, during the interval from t = 0 to t = 10 s? Show your work. b) What is the car's instantaneous acceleration at t = 40 s? CONTINUED ON NEXT PAGE c) How far did the car travel between t = 35 s and t = 50 s?
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