JAWAPAN LEVER
a. first class lever
b.see saw, claw hammer, pliers
c. load x load distance = effort distance x effort
5 x 4 = 10 x X
X= 20/10 = 2 kg
d. (5+4) x 4 = 10 x X
36 = 10X
X =3.6 kg
3.6 -2 =1.6 kg
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