(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

please look at the following statements:

1: due to air resistance, total energy of a satelliit will decrease gradually, dissipated into internal energy.

As T.E. = -GMm/2r, r will decrease, hence K.E. increases (K.E.=GMm/2r), implies speed increses.

(T.E.=PE+KE)

2: 98 01A 1 (c)(ii) E=T.E.

http://m1.freeshare.us/128fs1722277.png

http://m1.freeshare.us/128fs1722344.png

2. Relevant equations

T.E.=PE+KE

3. The attempt at a solution

in 2, if speed decreases, hence KE (=1/2 mv^2) decrease, as K.E.=GMm/2r, then r should be increased instead of decrease, so any contradiction?

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# Homework Help: G-field - help very confused

Can you offer guidance or do you also need help?

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