Question

Question #d89bc

Answer 1

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:

`v_(av) = d/t = (-98)/5.1 ~~ -19.2m*s^(-1)`