A weight hangs from a rope 20 feet long It swings through an

A weight hangs from a rope 20 feet long. It swings through an angle of 27° each second. How far does the weight travel each second? Round to the nearest 0.1 foot.

8.7 feet

8.1 feet

9.0 feet

9.4 feet

Solution

Here radius,r=20feet

And angle,theta=27degree=.471239 radians

arc length,s= radius * theta=20*.471239=9.4 feet

Correct option is D