It is question about finding tension and force in the picture below ?

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1 Answer
Apr 15, 2018

Tension in the string = 44N
Force exerted by B on the ground = 49N.

Explanation:

By the fig.
we got,
T-4g=4a ---(1)eqn
5g-T=5a ---(2)eqn.
From eqn(1) we got,
T=4(a+g)---(3)eqn
5g-4a-4g=5a
Taking g as 9.8 ms^(-2)
so, g=9a
i.e. a=9.8/9=1.089ms^(-2)
so, T=4(1.89+9.8) (From eqn(3))
T=43.556 N~= 44N
And, Force exerted by be on the ground = 5g=5(9.8)=49N