ncphysics

Calculate the radius of parachute that will slow a 70 Kg person to a terminal velocity of 8 m/s. The person tries to avoid leg injury after touch down by crouching down by 60 cm then calculate the total force at the point of contact?

An athlete running on curved track with 15 m radius and with speed of 6.7 m/s. If the athlete doesn't tilt to avoid falling down then calculate the torque on the athlete. Assume that the height of the athlete is 1.7 m and center of mass is at 57.1% of tot...