Question

A skydiver with mass m = 50.0 kg has reached a terminal velocity of 20.0 m/s. The skydiver's drag coefficient is:

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Determine the drag coefficient of a 75kg skydiver with a
projected area of 0.33m^2 and a terminal velocity of 60 m/s. Air
density at the skydiver's altitude is 0.932 kg/m^3.

Determine the terminal velocity of a 90 kg skydiver. How long
will it take to reach that velocity? Typical drag coefficient and
the frontal area of skydivers are 0.1 and 0.15 m2 ,
respectively.

A skydiver of mass 84.0 kg jumps from a slow-moving aircraft and
reaches a terminal speed of 52.6 m/s.
(a) What is her acceleration when her speed is 30.0 m/s?
magnitude
m/s2
direction
(b) What is the drag force on the skydiver when her speed is 52.6
m/s?
magnitude
N
direction
(c) What is the drag force on the skydiver when her speed is 30.0
m/s?
magnitude
N
direction

A skydiver of mass 92 kg jumps from a slow-moving airplane and
reaches a terminal speed of 49.9 m/s before opening her
parachute.
(a) What was her acceleration when her speed was 36.9 m/s?
(b) What was the magnitude of the drag force at the same
time?

Consider a skydiver of mass 75 kg who jumps from an airplane
flying at an altitude of 1,900 m. With her parachute open, her
terminal velocity is 8.1 m/s.
(a) What is the work done by gravity?
J
(b) What is the average force of air drag during the course of her
jump? (Enter the magnitude of the force.)
N

A skydiver of mass m = 70 kg, which includes the mass of all the
equipment she is wearing (helmet, parachute, etc.), jumps from an
airplane at high altitude. The density of the air is ρ = 1.22 kg/m3
.
(a) Estimate a numerical value for the terminal speed of the
diver while she is in a horizontal spread-eagle formation.
(Parachute is not open.) The drag coefficient of the diver in this
formation is about 1.0. Any other needed quantities...

A 60.0-kg and a 90.0-kg skydiver jump from an airplane at an
altitude of 6.00*10^3 , both falling in the pike position. Make
some assumption on their frontal areas and calculate their terminal
velocities. How long will it take for each skydiver to reach the
ground (assuming the time to reach terminal velocity is small)?
Assume all values are accurate to three significant digits. Use
Drag Coefficient 1.21kg/m^3 and frontal Arear of skydiver of
0.140m^2.

1) A 68 kg skydiver falls at a contast terminal speed of 59m/s.
at what rate is gravitational potential energy being removed from
the earth-skydiver system in kw?
2) A 2.0 kg block is dropped from a height of 40cm onto a spring
of force constant k= 1960 n/m. what is the max displacement of the
spring in cm?

The mass of a bicyclist and bike is 80 kg. The drag coefficient
is 0.79. Frontal area is 0.42 m^2. The density of air is 1.1 kg/m^3
at this elevation. The terminal velocity is reached when the drag
force of a free falling object is equal to the weight.
a)Estimate the magnitude of the terminal velocity of the cyclist
after he has ridden his bike off of a cliff. Assume that the
frontal area remains constant during the fall.
b)Estimate...

A skydiver is at an altitude of 1,525 m. After 11.0 seconds of
free fall, he opens his parachute and finds that the air
resistance, FD, is given by the formula
FD = −bv, where b is a
constant and v is the velocity. If b = 100,and
the mass of the skydiver is 86.0 kg, first set up differential
equations for the velocity and the position, and then find the
following. (Assume air resistance is negligible prior to the...

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