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A 120 lbf skateboarder has just taken a running jump off a table to land on her (stationary) 5 lbf skateboard and manages to stay on with expert agility. Her velocity in the air is V = 14 ft/s at 0 = 30° as shown. You may assume the surfaces are all frictionless for this analysis and that the skateboarder and the skateboard stay on the level pavement after she lands. 0

A 120 lbf skateboarder has just taken a running jump off a table to land on her (stationary) 5 lbf skateboard and manages to stay on with expert agility. Her velocity in the air is V = 14 ft/s at 0 = 30° as shown. You may assume the surfaces are all frictionless for this analysis and that the skateboarder and the skateboard stay on the level pavement after she lands. 0

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A 120 lbf skateboarder has just taken a running jump off a table to land on her (stationary) 5 lbf skateboard and manages to stay on with expert agility. Her velocity in the air is V = 14 ft/s at 0 = 30° as shown. You may assume the surfaces are all frictionless for this analysis and that the skateboarder and the skateboard stay on the level pavement after she lands. Ꮎ Use COLM principles (i.e., diagrams and equations) to determine the final speed V of the skateboarder and skateboard if her impact with the skateboard lasts 0.05 seconds.
Transcribed Image Text:A 120 lbf skateboarder has just taken a running jump off a table to land on her (stationary) 5 lbf skateboard and manages to stay on with expert agility. Her velocity in the air is V = 14 ft/s at 0 = 30° as shown. You may assume the surfaces are all frictionless for this analysis and that the skateboarder and the skateboard stay on the level pavement after she lands. Ꮎ Use COLM principles (i.e., diagrams and equations) to determine the final speed V of the skateboarder and skateboard if her impact with the skateboard lasts 0.05 seconds.
Use COLM principles (i.e., diagrams and equations) to calculate the impulsive force exerted by the pavement on the skateboard during the impact.
Transcribed Image Text:Use COLM principles (i.e., diagrams and equations) to calculate the impulsive force exerted by the pavement on the skateboard during the impact.
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