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An engine of mass5 x10^(4)kg pulls a coa...

An engine of mass`5 `x`10^(4)kg` pulls a coach of mass `4 `x`10^(4)kg` Suppose that there is a resistance of 1 N per 100 kg acting on both coach and engine, and that the drivingforce is 4500N. The acceleration of the engine and the coupling will respectively be

A

the acceleration of the system (coach + engine) is 0.04 `m//s^(2)`

B

the acceleration of the system (coach + engine) is 0.05 `m//s^(2)`

C

the tension in the coupling is 2000 N.

D

the tension in the coupling is 2400 N.

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The correct Answer is:
A, C
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