When the 150-lb skier is at point A he has a speed of 5 ft/s. When the skier reaches point B on the smooth slope, the slope follows the cosine curve shown. Suppose that y(x) = 48 cos () ft, where a is in ft. Neglect friction and air resistance. (Figure 1). Part A Determine the skier's speed when he reaches point B on the smooth slope. Express your answer to three significant figures and include the appropriate units. HẢ ? vg = Value Units Submit Request Answer Part B What is the normal force on the skier's skis at B? Express your answer to three significant figures and include the appropriate units. HẢ ? N = Value Units Figure 1 of 1 Submit Request Answer Part C B What is the skier's rate of increase in speed at B? Express your answer to three significant figures and include the appropriate units. at = Value Units 35 ft

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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When the 150-lb skier is at point A he has a speed of 5 ft/s. When
the skier reaches point B on the smooth slope, the slope follows the
cosine curve shown. Suppose that y(x) = 48 cos (2) ft,
where a is in ft. Neglect friction and air resistance. (Figure 1).
Part A
Determine the skier's speed when he reaches point B on the smooth slope.
Express your answer to three significant figures and include the appropriate units.
HÀ
vB =
Value
Units
Submit
Request Answer
Part B
What is the normal force on the skier's skis at B?
Express your answer to three significant figures and include the appropriate units.
HA
N =
Value
Units
Figure
< 1 of 1
Submit
Request Answer
A
Part C
B
What is the skier's rate of increase in speed at B?
Express your answer to three significant figures and include the appropriate units.
HA
at =
Value
Units
35 ft
P Pearson
Transcribed Image Text:When the 150-lb skier is at point A he has a speed of 5 ft/s. When the skier reaches point B on the smooth slope, the slope follows the cosine curve shown. Suppose that y(x) = 48 cos (2) ft, where a is in ft. Neglect friction and air resistance. (Figure 1). Part A Determine the skier's speed when he reaches point B on the smooth slope. Express your answer to three significant figures and include the appropriate units. HÀ vB = Value Units Submit Request Answer Part B What is the normal force on the skier's skis at B? Express your answer to three significant figures and include the appropriate units. HA N = Value Units Figure < 1 of 1 Submit Request Answer A Part C B What is the skier's rate of increase in speed at B? Express your answer to three significant figures and include the appropriate units. HA at = Value Units 35 ft P Pearson
Expert Solution
Step 1

Law of conservation of energy: Energy can neither be created nor be destroyed but it can be transferred from one form to another form.

Free Body Diagram: It is a diagram drawn to determine the unknown forces of the system.

 

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