Pendulum

Calculate the pendulum's length that is 2 cm lower in the lowest position than in the highest position. The length of the circular arc 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=o22x2 t=o22x2=10222=4 6 cm9.798 cm l2=(lx)2+t2 l2=l22lx+x2+t2 2lx=x2+t2 l=(x2+t2)/(2 x)=(22+9.7982)/(2 2)=25 cm



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Tiny
this helps me so much

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