Here w (angular velocity is given) which is inversely proportional to radius
r.
i.e w α 1/r
Let w1,r1,w2,r2 be measures of Small circle and big circle respectively
hence, w1 α 1/r1.....
Rahul Chandrashekar
Apr 11th, 2007
According to my calculation's the answer should be 2Reason :r1 = 8 r2distance travelled in 16 revoulutions for 1 sec =16 (2pi r2)r2 = (1/8) * r1sub in the equationhence we get 2(2 pi r1) is the distance travelled by the big ball in 1; hence it rotates 2 times in one second; so N = 2
The hands of a clock coincide 11 times in every 12 hours(Since between 11 and 1 they coincide only once,i.e at 12 o clock).therefore the hands of the clock coincide 22 times a day.
The clock will tick at 00:00 and then at between 1-2 between 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 12 PM then 1-2, 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, and between...
22 is the correct answer.Because the clock will tick at 12 and at between 1-2,bet 2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 12, 1-2,2-3, 3-4, 4-5, 5-6, 6-7, 7-8, 8-9, 9-10, 10-11, 12