A 150-kg object takes 90 seconds to travel a 2,500-meter straight path. It begins the trip traveling 120 meters per second and decelerates to a velocity of 20 meters per second.
What was its acceleration?
Responses
−1.11 m/s2
negative 1.11 meters per second squared,
−0.3 m/s2
negative 0.3 meters per second squared,
+1.11 m/s2
plus 1.11 meters per second squared,
+80 m/s2