Home › ESAT › Physics › Friction and Circular Motion › A 75 kg skydiver falling head first reaches a te…
A 75 kg skydiver falling head first reaches a terminal speed of roughly:
A450 km/h
B350 km/h
C150 km/h
D250 km/h
Answer & Solution
Correct answer: B. 350 km/h
1. Head first minimises the area presented to the air.
2. Less area means less drag, so the terminal speed is high.
3. It comes to about 350 km per hour.
_Source: OpenStax University Physics Volume 1, Chapter 6, Applications of Newton's Laws._
Related questions
Two masses hang from a rope over a light frictionless pulley. Along that rope the tension Spreading out into a spread-eagle position drops that terminal speed to about:Drag also depends on the density of the fluid, the drag coefficient and the object's:At everyday speeds, drag force is proportional to the speed of the object raised to the poLike friction, the drag force on a moving object always acts to oppose its:The outward pull a rider seems to feel on a merry-go-round is mistakenly called the:A passenger feels thrown sideways when the car turns. That apparent push is an inertial orFor ideal banking, the centripetal force is supplied entirely without any: