ProblemAssignment3Vers1

course Phy 121

2/6 at 11:45

An object travels a distance of 32 cm in 17.6 seconds from start to finish. If its acceleration is uniform and its initial velocity zero, then what are its average velocity, acceleration and final velocity?

Average Velocity = distance traveled/time elapsed = 32 cm/17.6 sec. = 1.82 cm/sec

Acceleration = change of velocity/time elapsed = (1.82 cm/sec-0 cm/sec)/17.6 sec =.103 cm/sec^2

change in velocity is not average velocity - initial velocity, it's final velocity - initial velocity.

Final Velocity since the acceleration is uniform will be double the average velocity or 3.64 cm/sec.

If the final velocity is 3.64 cm/s and the initial velocity is zero, then the change in velocity is 3.64 cm/s.

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