Physics, 26.02.2020 03:09 isaiah1027
A projectile is fired upward with an initial speed vo on an airless world. A short time later, it comes back down and has a final speed vo (just before it hits the ground).
What was the sign of the total work done by the force of gravity during the flight?
a. Wgrav=0
b. Wgrav < 0
c. Wgrav >0
Answers: 1
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A projectile is fired upward with an initial speed vo on an airless world. A short time later, it co...
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