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2/111 The car is traveling at a speed of 60 mi/hr as it ap-
proaches point A. Beginning at A, the car deceler-
ates at a constant 7 ft/sec² until it gets to point B,
after which its constant rate of decrease of speed is
3 ft/sec² as it rounds the interchange ramp. Deter-
mine the magnitude of the total car acceleration
(a) just before it gets to B, (b) just after it passes B,
and (c) at point C.
-300'
B
200'
C

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