physics

Two blocks with masses 5 kg and 2 kg are connected
(via frictionless, massless pulleys) by a light,
inextensible string, as shown. There is no friction
between the 5 kg block and the horizontal surface on
which it moves.
The tension T in the string supporting the 2 kg block is
5 kg
A 7 N B 14 N C 20 N D 28 N

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  1. net force: 2g
    Acceleration=force/totalmass=2g/7=19.6/7 m/s^2
    thension= 2(9.8-2.8)=2*7=14N

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    bobpursley

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