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Adrahil

(13,340 posts)

15. That's a wierd way to calculate this....

Reply to struggle4progress (Original post)

Fri Jul 14, 2017, 11:00 PM

Jul 2017

As the author notes, the force is applied over some distance, so it's not like all that for e is exterted all at once. Besides, a better, more accurate way to calculate what it takes is to use the ballistic equations of motion.

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The physics of big sack over beautiful wall [View all] struggle4progress Jul 2017 OP

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That's a wierd way to calculate this.... Adrahil Jul 2017 #15

You need to know the total energy, which at any time during the trajectory struggle4progress Jul 2017 #17

Total energy isn't that usful in this case... Adrahil Jul 2017 #18

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