Pendulum

Calculate the pendulum's length 2 cm lower in the lowest position than in the highest position. The circular arc length to be described when moving is 20cm.

Correct answer:

l =  25 cm

Step-by-step explanation:

x=2 cm o=20 cm o2=o/2=20/2=10 cm t2 = o22  x2 t=o22x2=10222=4 6 cm9.798 cm l2 = (lx)2 + t2 l2 = l2 2lx + x2 +t2 2lx = x2 +t2 l=(x2+t2)/(2 x)=(22+9.7982)/(2 2)=25 cm



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Showing 1 comment:
Tiny
this helps me so much





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