Please HELP ME WITH THIS.
and also PLEASE EXPLAIN IT as you can.
I don’t understand this angular velocity,acceleration etc. so nicely.
Angular velocity w = angle(radians)/time(sec)
For a second hand, the angle is 2π radians and the time is 60 sec;
w = 2π/60 =0.1047 rad/sec
b) Vtip = w*r = 0.1047*1.0 = 0.1047 cm/sec