Question

a ball is thrown horizontally from a point a and travels along a straight line and strikes the wall to a point p which is at a distance of 10 km and rebounds to the same point 1 8 seconds find the average speed and average velocity of the ball



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Answer 1

Answer:

total distance covered : 2x10km = 20000 m

total time taken = 18 sec

average speed = total distance / total time

= 20000 / 18

= 1111.11 m/s

average velocity = 0

Explanation:

Since the object's initial position and final position are same, therefore, no displacement and subsequently average velocity is also 0.

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Answer 2

Explanation:

Total distance covered= 2×10=20000m

Total time taken= 18 seconds

Average speed =20000/18

=1111.11