A 1.5 kg block is initially at rest on a horizontal frictionless surface when a horizontal force
Question:
A 1.5 kg block is initially at rest on a horizontal frictionless surface when a horizontal force along an x axis is applied to the block. The force is given by F(x) = (2.5 – x2)i N, where x is in meters and the initial position of the block is x = 0.
(a) What is the kinetic energy of the block as it passes through x = 2.0 m?
(b) What is the maximum kinetic energy of the block between r = 0 and x = 2.0 m?
Step by Step Answer:
a Using the workkinetic energy theorem K K 25 x dx 0 25 20 20 23 J b For a variable ...View the full answer
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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