A light spring having a force constant of 125N/m is used to pull a 7.20kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is 0.200. The sled has an acceleration of 1.80m/s^2. By how much does the spring stretch if it pulls on the sled horizontallly? If the string stretches by the same amount but is pulling the sled at 30 degrees above the horizontal, what is the new acceleration?
A light spring having a force constant of 125N/m is used to pull a 7.20kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is 0.200. The sled has an acceleration of 1.80m/s^2. By how much does the spring stretch if it pulls on the sled horizontallly? If the string stretches by the same amount but is pulling the sled at 30 degrees above the horizontal, what is the new acceleration?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 35PQ: A black widow spider hangs motionless from a web that extends vertically from the ceiling above. If...
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A light spring having a force constant of 125N/m is used to pull a 7.20kg sled on a horizontal ice rink. The coefficient of kinetic friction between the sled and the ice is 0.200. The sled has an acceleration of 1.80m/s^2.
By how much does the spring stretch if it pulls on the sled horizontallly?
If the string stretches by the same amount but is pulling the sled at 30 degrees above the horizontal, what is the new acceleration?
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