Skydiver jumps out of a plane she falls down word and very fast P. When she Open Sarah parachute she slows down. What force pulls the skydiver to the ground?

Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.