The car is traveling at a speed of 64 mi/hr as it approaches point A. Beginning at A, the car decelerates at a constant 6.2 ft/sec² until it gets to point B, after which its constant rate of decrease of speed is 2.1 ft/sec² as it rounds the interchange ramp. Determine 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. 366' 248¹
The car is traveling at a speed of 64 mi/hr as it approaches point A. Beginning at A, the car decelerates at a constant 6.2 ft/sec² until it gets to point B, after which its constant rate of decrease of speed is 2.1 ft/sec² as it rounds the interchange ramp. Determine 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. 366' 248¹
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Transcribed Image Text:The car is traveling at a speed of 64 mi/hr as it approaches point A. Beginning at A, the car decelerates at a constant 6.2 ft/sec² until it
gets to point B, after which its constant rate of decrease of speed is 2.1 ft/sec² as it rounds the interchange ramp. Determine 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.
Answers:
(a) Just before B,
(b) Just after B,
(c) At C,
366'
a =
a =
a =
i
i
i
248'
B
C
ft/sec²
ft/sec²
ft/sec²
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