002 10.0 points
a tennis ball with a speed of 10.1 m/s is
moving perpendicular to a wall. after striking
the wall, the ball rebounds in the opposite
direction with a speed of 8.3426 m/s.
if the ball is in contact with the wall for
0.00905 s, what is the average acceleration of
the ball while it is in contact with the wall?
take “toward the wall” to be the positive
direction.
answer in units of m/s2.
likel
and
1. ]
i don’t understand !

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.