Chapter 09, Problem 068 (Video Solution) Incorrect. How much more power is required to pedal a...
Hint: Use 1D relative velocity to find the velocity of the car
with respect to the air, which is used to find the drag force.
A 2520 lb car has a frontal cross-sectional area A of 20.0 ft2, a drag coefficient Cd of 0.25, and a drive (or tractive) force of 250 lbs. Assume an air density of 2.3x10-3 slug/ft3, Here is a list of frontal areas and drag coefficients for cars. This web site has interesting information on how...
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Rent FULL SCREEN PRINTER VERSION BACK Chapter 09, Problem 57 Chalkboard Video A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 8.93 m/s at the bottom of the rise. Find the translational speed at the top Number Units the tolerance is +/-2% Click if you would like...