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WAEC - Physics (1990 - No. 12)
The body P shown in the diagram above is in equilibrium. If the mass Q of the body is 10kg, calculate the tension T in the string. (Take g = 10ms
2
)
20/√3N
20N
50N
200√3N
200N
解释
T =
P
/
cos60
o
=
100
/
cos60
o
= 200N
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