A meteor (m = 575 kg) has a speed of 90.0 m/s when 800 km above the Earth. It is falling vertically (ignore air resistance)
A meteor (m = 575 kg) has a speed of 90.0 m/s when 800 km above the Earth. It is falling vertically (ignore air resistance) and strikes a bed of sand in which it is brought to rest in 3.25 m.
(a) What is its speed just before striking the sand?
(b) How much work does the sand do to stop the meteor?
(c) What is the average force exerted by the sand on the meteor?
(d) How much thermal energy is produced?Step by Step Solution
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Step: 1
a The expression for 3 rd of motion is v 2 u 2 2ax Substitute 90 ms for u 98 ms 2 for a and 800 km for x v 2 90ms 2 2 298 ms 2 800km Rearrange the abo... View full answer
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Authors: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
6th edition
013408229X, 978-0134082295, 9780134080512 , 978-0134060491
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