angelteddy033
28.06.2019 •
Mathematics
The ropes on either side of a swing are 1.9 m long. if a child swings through a arc length of 0.9 determine the angle (in radians) through which the child swings
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Ответ:
theta = 9/19 radians or approximately .4737 radians
Step-by-step explanation:
The formula for arc length is
S = r theta
where theta is in radians. Lets put in what we know. The radius would be 1.9 since the ropes would be the radius.
.9 = 1.9 theta
Divide by 1.9 on each side.
.9/1.9 = theta
theta = 9/19 radians
or in decimal form it is approximately .4737 radians
Ответ: