"Wheels of diameters 7 cm and 14 cm start rolling simultaneously from `X`and `Y`
Channel: Doubtnut
Date: 05/04/2020

"Wheels of
 diameters 7 cm and 14 cm start rolling simultaneously from `X`
and `Y`
, which are
 1980 cm apart, towards each other in opposite directions. Both of them make
 the same number of revolutions per second. If both of them meet after 10
 seconds, the speed of the smaller wheel is
(a) 22
 cm/sec (b) 44 cm/sec (c) 66 cm/sec (d) 132 cm/sec"