A meteor (m = 575 kg) has a speed of 90.0 m/s when 800 km above the

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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?

(d) How much thermal energy is produced?

Related Book For answer-question

Conceptual Physical Science

ISBN: 978-0134060491

6th edition

Authors: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt

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Posted Date: Oct 25, 2019 11:05 AM

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A meteor (m = 575 kg) has a speed of 90.0 m/s when 800 km above the

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Expert Answer:

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 the full answer

Conceptual Physical Science

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