fig 10 shows a see-saw which is perfectly in balance, the weighs of the people sitting on it are 50kg, xkg and 15kg as shown, the sit at distances of 1.5, 1.5 and 2m from the pivot respectively. The vale of X is
a
30
b
35
c
70
d
24.25
e
impossible to find
Explanation
Correct Option
a
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Discussions (10)
ThankGodNwaoha
7 years ago
Applying principle of moment
sum of anticlockwise moment=sum of clockwise moment
50X1.5=xX1.5+2X15
75=1.5x+30
75-30=1,5x
45=1.5x
x=45/1,5
x=30
Noblembachu
5 years ago
well postume is .......because i practicised physics as the only subject for 25 questions getting(60)% 240 waw
