Sam is observing the velocity of a car at different times. After two hours, the velocity of the car is 50 km/h. After six hours, the velocity of the car is 54 km/h.
Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of the car at different times. Show your work and define the variables used. (5 points)
Part B: How can you graph the equation obtained in Part A for the first seven hours? (5 points)
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OpenStudy (dan815):
okay so write this change in velocity
OpenStudy (dan815):
If there is a change in velocity, there must be an acceleration
OpenStudy (camerondoherty):
Is this like prephysics?
OpenStudy (dan815):
A=change_in_velocity/change_in_time
OpenStudy (camerondoherty):
so A=4/4
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OpenStudy (camerondoherty):
change is 4 hours
velocity change is 4 mph
OpenStudy (dan815):
yes
OpenStudy (camerondoherty):
or km per hour
OpenStudy (dan815):
so its changing 1mph/h
OpenStudy (camerondoherty):
or 1 km per hour
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OpenStudy (dan815):
ummm dont get the units confused
OpenStudy (camerondoherty):
ur getting them conf XD
OpenStudy (dan815):
oh km yes but umm, its 1 kmph/h
OpenStudy (dan815):
1 km / h^2
OpenStudy (camerondoherty):
so now you needa square it?
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OpenStudy (dan815):
ok thats not really important for now lets just write your equation