Determine what is the terminal speed

Reference no: EM13538496

In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is ? = 32.5°, the snow is dry snow with a coefficient of kinetic friction ?k = 0.0400, the mass of the skier and equipment is m = 76.0 kg, the cross-sectional area of the (tucked) skier is A = 1.30 m2, the drag coefficient is C = 0.150, and the air density is 1.20 kg/m3.

(a) What is the terminal speed?

(b) If a skier can vary C by a slight amount dC by adjusting, say, the hand positions, what is the corresponding variation in the terminal speed?

Reference no: EM13538496

Questions Cloud

What was the percent difference between these values : You measured the speed of sound to be 348.9 m/s. Your lab partner measured it to be 313 m/s. What was the percent difference between these values, What was the percent difference between these values

What was your percent error : If you did an experiment and measured g to be 9.3 m/s2, and the accepted value is 9.81 m/s2, what was your percent error

Find the most likely value for the volume of the cylinder : Suppose you measure a cylinder and determine that the radius is 0.52 + 0.01 cm and its height is 3.20 + 0.15 cm. What is the most likely value for the volume of the cylinder

Prepare the entry to record the exchange : Its fair value is $19,000, and cash of $5,000 is paid. Prepare the entry to record the exchange, assuming the transaction has commercial substance.

Determine what is the terminal speed : In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is ? = 32.5°, What is the terminal speed

Calculate the torque-angular momentum of the system : Two particles rest at a distance d apart on the edge of a table. One of the particles of mass m, falls off the edge and falls vertically. Using the other particle (still at rest) as the origin, (a) calculate the torque ? on m as a function of time..

Calculate the internal rate of return of the investment : Calculate the internal rate of return of the investment opportunity and indicate whether the investment opportunity should be accepted.

Find the magnitude of the force-microc charge experiences : A +5.0-microC charge experiences a 0.46-N force in the positive y direction. If this charge is replaced with a charge-2.7-microC, find the magnitude of the force in this case.

Obtain the magnitude and direction of the frictional force : A 75 g spherical ball rolls without slipping down a ramp that makes an angle of 20 degrees with the horizontal. Find the magnitude and direction of the frictional force on the ball

User Account

All Pages