The hour hand of a clock travels through an angle of 45°. If the hour hand is 1.5m long, how far does its tip travel?

Question

Angle is 45°

Dont know 1.5 is radius or diameter

Answer 1

s = arc length (i.e. distance traveled)

 

r = radius (1.5 m or 1.5/2 m ?)

 

θ = angle in radians

 

θ = 45°(π/180°) radians

 

s = rθ = r [45°(π/180°)]

 

Now find out what r is, plug in the correct number, and evaluate.  The answer will come out in the same units as r.