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BARSIC [14]
3 years ago
13

A package is dropped from a helicopter that is moving upward at 20.0 m/s.

Physics
1 answer:
Tanya [424]3 years ago
6 0

Explanation:

<h3>We have for velocity of package v= 20 - 9.8t and for distance from the ground y = h + 20t - 4.9t2.</h3><h3>We have y = 0 and t = 18.0 s we have h = 4.9·182 - 20·18 = 1227.6 m.</h3><h3>Velocity at landing v = 20 - 9.8·18 = - 156.4 m/s </h3>

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