A skydiver has bailed out of his airplane at a height of 3000 m. The mass of the skydiver and his parachute is 80 kg. What is the drag (force of air resistance) when he reaches terminal speed?
A. 120 N
B. 360 N
C. 784
D. 750 N
C. 784
You might also like to view...
Lenz's Law: A long straight wire lies on a horizontal table and carries an ever-increasing current toward the north. Two coils of wire lie flat on the table, one on either side of the wire. When viewed from above, the direction of the induced current in these coils is
A. clockwise in both coils. B. counterclockwise in both coils. C. clockwise in the east coil and counterclockwise in the west coil. D. counterclockwise in the east coil and clockwise in the west coil.
What characteristic do all stars on the main sequence share?
A. They are all fusing hydrogen into helium in their cores. B. They all have the same temperature. C. They all have the same luminosity. D. They will all go through a helium flash in the future. E. They all have the same size.
The tarp covering on a trailer or truck puffs upward for fast-moving vehicles, which illustrates
A) Pascal's principle. B) Archimedes' principle. C) the principle of continuity. D) Bernoulli's principle.
A solid object floats in water with three-fourths of its volume beneath the surface. What is the object's density? The density of water is 1000 kg/m3
A) 1333 kg/m3 B) 1000 kg/m3 C) 750 kg/m3 D) 250 kg/m3