test2_09Soln

# 1 2 5 derive the formula for the centripetal

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Unformatted text preview: . Will the crate move? 1 2) [5] Derive the formula for the centripetal acceleration (acp = vr ) from the position vector describing uniform circular motion (formula sheet!), and show the direction for the acceleration vector. 2 2 3) [5] Calculate the earth’s linear speed in its motion around the sun starting from the law of gravity and Newton’s 2nd law. Assume dS−E = 1.5 × 1011 m, and MS = 2.0 × 1030 kg. Then calculate the length of a year from one orbit. 3 4) [5] When you compress a spring the force increases linearly with the displacement from equilibrium ∆x. Calculate the work as...
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## This note was uploaded on 09/28/2010 for the course MATH 1025 taught by Professor Tammie during the Fall '10 term at York University.

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