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PhysicsPhysics
14 October, 16:59

A car traveling on a straight road at 15.0 meters

per second accelerates uniformly to a speed of

21.0 meters per second in 12.0 seconds. The

total distance traveled by the car in this

12.0-second time interval is

(1) 36.0 m (3) 216 m

(2) 180. m (4) 252 m

+4
Answers (1)
  1. 14 October, 17:20
    0
    The accelerated speed is (21-15) / 12=0.5 m/s2. The rule of calculating the movement with constant accelerated speed is s=v0t + 1/2*at2. So the distance is 216 m. So the answer is (3).
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Home » Physics » A car traveling on a straight road at 15.0 meters per second accelerates uniformly to a speed of 21.0 meters per second in 12.0 seconds. The total distance traveled by the car in this 12.0-second time interval is (1) 36.0 m (3) 216 m (2) 180.
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