A 180-lb snowboarder has speed v = 18 ft/sec when in the position shown on the halfpipe. Determine the normal force on his snowboard and the magnitude of his total acceleration at the instant depicted. Use a value μk = 0.07 for the coefficient of kinetic friction between the snowboard and the surface. Neglect the weight of the snowboard and assume that the mass center G of the snowboarder is 2.2 feet from the surface of the snow.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A 180-lb snowboarder has speed v = 18
ft/sec when in the position shown on the
halfpipe. Determine the normal force on his
snowboard and the magnitude of his total
acceleration at the instant depicted. Use a
value μk = 0.07 for the coefficient of kinetic
friction between the snowboard and the
surface. Neglect the weight of the
snowboard and assume that the mass center
G of the snowboarder is 2.2 feet from the
surface of the snow.
40°
G
Answers
N =
a =
V
i 3725.6
23.22
22'
lb
ft/sec²
Transcribed Image Text:A 180-lb snowboarder has speed v = 18 ft/sec when in the position shown on the halfpipe. Determine the normal force on his snowboard and the magnitude of his total acceleration at the instant depicted. Use a value μk = 0.07 for the coefficient of kinetic friction between the snowboard and the surface. Neglect the weight of the snowboard and assume that the mass center G of the snowboarder is 2.2 feet from the surface of the snow. 40° G Answers N = a = V i 3725.6 23.22 22' lb ft/sec²
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