PLS HELP ILL MARK YOU BRAINIEST 3. A 57.0 kg diver dives from a height of 15.0 m. She reaches a speed of 14.0 m/s just
before entering the water. What was the average force of air resistance (e. g., friction)
acting on the diver?
Bonus: What is the force of friction underwater if she reaches a depth of 2.5 m before
stopping? Do not neglect the buoyant force of 500 N acting on the diver once underwater.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.

Which substance partical has negligible massand travels around outsidethe nucleus