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3. The car passes point A with a speed of 20 m/s after which its speed is defined by
v= (20 – 0.20s) m/s. Determine the magnitude of the car's acceleration when it reaches point B,
where s = 51.5 m and x = 50 m.
dv
Recall:
dt
dv
ds
y
1
y = 16 –
625
В
S
16 m

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