Question

if a point in the rim of a 16 cm diameter fly wheel travels 7000 meters in a minute , through how many radians does the wheel turn in two seconds ? answer with solution
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Answer 1

Answer:

Step-by-step explanation:

60 radians is right answer

Answer 2

Answer:

In 2 seconds flywheel travels 972.2 radians.

Step-by-step explanation:

Radius of flywheel is r=$\frac{24}{2}$=12cm

In one rotation flywheel traverses d=2⋅ π ⋅r=2⋅ π ⋅12=75.4cm

no. of rotations to cover 7000 in 2 minutes is n=$\frac{7000 . 100}{75.4}$=9284

No. of rotations is 2 seconds is n2 =$\frac{9284}{120}$. 2 = 154.73 times.

Therefore in  154.73  rotation flywheel turns  2 ⋅ π ⋅ 154.73 = 972.2  radians.