a) A parachutist of mass mkg falls freely until his parachute is opened when it is opened, it experiences an upward resistance kv where v is its speed and k is a positive constant. Prove that after time t from the opening of its parachute, m dv = mg - kv. dt Prove that irrespective of his speed when he opens his parachute, his speed approaches a limiting value of mg provided he falls for sufficiently longtime. k m The parachutist falls freely from rest under gravity for a time and then opens his parachute. Prove 2k that the total distance he has fallen when his velocity is 3mg m2g (8ln2- 1)m. is 4k 8k2
a) A parachutist of mass mkg falls freely until his parachute is opened when it is opened, it experiences an upward resistance kv where v is its speed and k is a positive constant. Prove that after time t from the opening of its parachute, m dv = mg - kv. dt Prove that irrespective of his speed when he opens his parachute, his speed approaches a limiting value of mg provided he falls for sufficiently longtime. k m The parachutist falls freely from rest under gravity for a time and then opens his parachute. Prove 2k that the total distance he has fallen when his velocity is 3mg m2g (8ln2- 1)m. is 4k 8k2
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![a) A parachutist of mass mkg falls freely until his parachute is opened when it is opened, it experiences
an upward resistance kv where v is its speed and k is a positive constant.
dv
Prove that after time t from the opening of its parachute, m
= mg - kv.
dt
Prove that irrespective of his speed when he opens his parachute, his speed approaches a limiting
value of mg
provided he falls for sufficiently longtime.
k
The parachutist falls freely from rest under gravity for a time and then opens his parachute. Prove
m
2k
that the total distance he has fallen when his velocity is
m2g
3mmg
is
(8ln2 - 1)m.
4k
8k2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5a6d9c67-6f13-49d2-ac4d-2d996f90a88b%2Fd6c1fa12-a090-459a-b2c6-e2d0dbd80633%2Fq6ny4z5_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a) A parachutist of mass mkg falls freely until his parachute is opened when it is opened, it experiences
an upward resistance kv where v is its speed and k is a positive constant.
dv
Prove that after time t from the opening of its parachute, m
= mg - kv.
dt
Prove that irrespective of his speed when he opens his parachute, his speed approaches a limiting
value of mg
provided he falls for sufficiently longtime.
k
The parachutist falls freely from rest under gravity for a time and then opens his parachute. Prove
m
2k
that the total distance he has fallen when his velocity is
m2g
3mmg
is
(8ln2 - 1)m.
4k
8k2
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