Physics, 12.01.2020 21:31 JaredO

In which situation is the acceleration of the car negative?
a) the velocity of a car was 75 km/h over 4 hours.
b) the velocity of a car reduced from 50 km/h to 35 km/h over one minute.
c) the velocity of a car increased from 40 km/h to 75 km/h over 15 minutes.
d) the velocity of a car was 45 km/h at 2: 00 pm and at 4: 00 pm the velocity of the car was 85 km/h.

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In which situation is the acceleration of the car negative?
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