15A81 kg skydiver can be modeled as a rectangular "box" with dimensions 18 cm x 35 cm x 180 cm. Ifhe falls feet first, his drag coefficient is 0.80.Part AWhat is his terminal speed if he falls feet first? Use p = 1.2 kg/m³ for the density of air at room temperature.Express your answer with the appropriate units.ValueUnitsSubmitRequest Answer

We know that Drag force is D = 1/2*density*v2*C*A Where C is the Drag coeffecientW = m*gAt terminal…

15 A81 kg skydiver can be modeled as a rectangular "bax with dimensions 18 cm x 35 cm x 180 cm. If he falls feet first, his drag coeficient is 0.80. Part A What is his terminal speed if he fals feet first? Use p= 1.2 kg/m' for the density of air at room temperature Express your answer with the appropriate units. Value Units Submit BeautatAner

15 A81 kg skydiver can be modeled as a rectangular "bax with dimensions 18 cm x 35 cm x 180 cm. If he falls feet first, his drag coeficient is 0.80. Part A What is his terminal speed if he fals feet first? Use p= 1.2 kg/m' for the density of air at room temperature Express your answer with the appropriate units. Value Units Submit BeautatAner

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter5: Further Applications Of Newton's Laws: Friction, Drag, And Elasticity

Section: Chapter Questions

Problem 2PE: (a) When rebuilding her car's engine, a physics major must exert 300 N of force to insert a dry...

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When rebuilding his car's engine, a physics major must continuously exert 1.16 ✕ 102 N of force to insert a dry steel piston as it slides into a steel cylinder. What is the normal force (in N) between the piston and cylinder? A.) (Enter the magnitude.) B.)What force (in N) would he have to continuously exert if the steel parts were oiled? (Enter the magnitude.)
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kgkg runner completes a 5.0 kmkm race in 17 minutes. A) Determine the drag force on the runner during the race. Suppose that the cross section area of the runner is 0.72 m2m2. Express your answer with the appropriate units. B) What is this force as a fraction of the runner's weight? Express your answer numerically.
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A block of mass M slides () along a rough (s) inclined surface (dila au) with a constant velocity. The inclination angle ( ) of the surface is 0 as shown in the adjacent figure (sl ). The coefficient (Jales) of kinetic friction ( Hk) of the inclined surface is: A. cos?(0) B. cos(0) C. sin(20) D. tan(0) E. sin(0) M V= Constant 10 *Take g= 9.8 m/s?
you are driving down the road and are speeding. You apply the brakes on your car until you slow down to 22.4 m/s. A computer plots the force versus time for the vehichle and then measures the area under the curve. The area is -18950 N per s. The total breaking is 5.4 seconds. The combined mass of the car is 1200 kg. How fast were you moving before applying the breaks? What is the average force applied by the road to thr car before breaking?
Wing Loading of = 570 N/m² Co = 0.06 +0.0150₂² The glider was launched at 500 meters altitude. Calculate for mimimum rate of descent in meters per second. (Round off answer with two decimal places, No units, No commas) Answer given: 23554 Which is not true about the effect of altitude? A. Points with the same value of a therefore must have the same glide path angle. B. The drag polar changes with flight speed. C. The glide path angle is independent of altitude and depends solely on the angle of attack.
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9. Consider the falling object of mass 10 kg in Example 2, but assume now that the drag force is proportional to the square of the velocity. a. If the limiting velocity is 49 m/s (the same as in Example 2), show that the equation of motion can be written as 1 (49² - 1²). 245 dy dt Also see Problem 21 of Section 1.1. b. If y(0) = 0, find an expression for v(t) at any time. Gc. Plot your solution from part b and the solution (26) from Example 2 on the same axes. d. Based on your plots in part c, compare the effect of a quadratic drag force with that of a linear drag force. e. Find the distance x(t) that the object falls in time t. Nf. Find the time T it takes the object to fall 300 m.