A 74.0-kg skydiver reaches a terminal speed of 59.7 m/s with her parachute undeployed. Suppose the drag force acting on her is proportional to the speed squared, or Fdrag = kv2. (a) What is the constant of proportionality k? (Assume the gravitational acceleration is 9.8 m/s2.) (b) What was the magnitude of the acceleration when she was falling at half terminal speed? m/s2

A 74.0-kg skydiver reaches a terminal speed of 59.7 m/s with her parachute undeployed. Suppose the drag force acting on her is proportional to the speed squared, or Fdrag = kv2. (a) What is the constant of proportionality k? (Assume the gravitational acceleration is 9.8 m/s2.) (b) What was the magnitude of the acceleration when she was falling at half terminal speed? m/s2

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Description: A 74.0-kg skydiver reaches a terminal speed of 59.7 m/s with her parachute undeployed. Suppose the drag force acting on her is proportional to the speed squared, or Fdrag = kv2.(a) What is the constant of proportionality k? (Assume the gravitational

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: More Applications Of Newton’s Laws

Section: Chapter Questions

Problem 61P

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows:

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A 74.0-kg skydiver reaches a terminal speed of 59.7 m/s with her parachute undeployed. Suppose the drag force acting on her is proportional to the speed squared, or F_drag = kv².

(a) What is the constant of proportionality k? (Assume the gravitational acceleration is 9.8 m/s².)

(b) What was the magnitude of the acceleration when she was falling at half terminal speed?
m/s²

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