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Question: a model rocket is launched straight up after 3 seconds...

Question details
A model rocket is launched straight up. After 3 seconds it runs out of fuel. It continues upward but eventually falls straight back down. It’s height is recorded every 0.5 seconds.


what is the velocity of the rocket at the instant when it hits the ground on the way down?

The ANSWER IS NOT -165 ft/sec
10 I.s 23.5 51.4 90.0 400 ฉ 99.5 261.0 314.5 360.0 397.5 2000 448.5 462.0 467.5 150.0 1000 500 8.0 454.5 436.0 409.5 375.0 332.5 282.0 9.5 157.0
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