please help :/

If w=0.50 m/s, diameter of circle is half a meter then projection on diameter has time
Period?
a) 1 sec
b) 5 sec
c) pie sec
d) 1.5 sec

Question

please help :/

If w=0.50 m/s, diameter of circle is half a meter then projection on diameter has time
Period? 
a) 1 sec
b) 5 sec 
c) pie sec
d) 1.5 sec

anonymous · Answer

@hartnn @nincompoop @kropot72 @Luigi0210 @matricked @Preetha

anonymous · Answer

@iambatman

anonymous · Answer

its omega unit is radius /sec *

sidsiddhartha · Answer

look velocity is given V=.5 m/s 
and diameter=1/2 so radius=1/4=R
now we know that
V=Rw
w=V/r=4/2=2
again time period T=(2*PI)/w=2*pi/2=pi
so option C

sidsiddhartha · Answer

do u get ut  @sarah786

mrnood · Answer

@sidsiddhartha  - I think she changes w to rad/s , not m/s

anonymous · Answer

yeah answer is C .

anonymous · Answer

Thank you so much @sidsiddhartha

sidsiddhartha · Answer

:)