Question #d89bc

1 Answer
Olivier B.
Jun 12, 2015

The projectile's average velocity is −19.2m⋅s−1

Explanation:

The average velocity of an projectile is found with

(total distance run)/(total time to run this distance)

The projectile starts from x=+63m and stops at x=−35m
Therefore, the total distance run is d=−35−(+63)=−98m

That means that, if we consider x rising when moving to the right, the projectile moved 98m to the left.

Now we calculate:

vav=dt=−985.1≈−19.2m⋅s−1

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