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An engine of mass 5 xx 104 kg pulls a co...

An engine of mass` 5 xx 104` kg pulls a coach of mass `4xx10kg.` Suppose that there is a resistance of 1 N per 100 kg acting on both coach and engine, and that the driving

A

`0.04 m//s^(2), 2000N`

B

`0.4 m//s^(2), 200N`

C

`0.4 m//s^(2), 20N`

D

`4 m//s^(2) , 200N`

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The correct Answer is:
A
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