6. You are piloting a helicopter that is 196 meter above the ground. A large with a horizontal velocity of 8.50 m/s from the helicopter.
a) When does the
ball reach Barney's head if he is standing in a hole with his head at ground
level?
b) Where does Barney have to be horizontally relative to the helicopter's position?
c) What is the vertical velocity when it hits the ground?
What is the range of the

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.