Christina throws a javelin into the air. As she propels it forward from rest, she does 270

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Christina throws a javelin into the air. As she propels it forward from rest, she does 270 J of work on it. At its highest point, its gravitational potential energy has increased by 70 J. What is the javelin's kinetic energy at this point?

A. 270 J

B. 340 J

C. 200 J

D. -200 J

E. -340 J

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College Physics A Strategic Approach

ISBN: 9780321907240

3rd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

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