A) What distance was the spring originallycompressed? B) What is the kinetic ene

Question

A) What distance was the spring originallycompressed?
B) What is the kinetic energy of the glider at thispoint? A small glider is placed against a compressed spring at the bottomof an air track that slopes upward at an angle of42.0 abovethe horizontal. The glider has mass9.00×102.The spring has 650 andnegligible mass. When the spring is released, the glider travels amaximum distance of 1.80 alongthe air track before sliding back down. Before reaching thismaximum distance, the glider loses contact with the spring.
A) What distance was the spring originallycompressed?
B) What is the kinetic energy of the glider at thispoint?

Explanation / Answer

a) get the h (h) by 1.8*sin(42) equation to use = 1/2kx^2=mgh 1/2(650)(x^2)= (.09)(9.8)(1.8*sin(42)) and thats your answer

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