Question

A small block of mass 10 g is fastened to one
end of a light string and a second block my of
mass 20 g to the middle point, the other end of
the string fastened to a fixed point on a smooth
horizontal table. The blocks are then projected
such that the two portions of the string are
always in the same straight line and the blocks
describe horizontal circles on the table as shown

The tension in string portion between blocks is
T1and tension between point O and the block of
mass m2 is T2. The value of t1/t2 is
(a) 1 (b) 2 (c)0.5 (d) 0.25​

Answer 1

Answer:

0.5(c)

Explanation:

from free body diagram

• T2-T1=m2/w²        
• T1=2m1/w²
• or T2=[2m1+m2]/w²

•    T1/T2=[2m1/w²]/[2m1+m2]/w²
•              =2×10/20+20=20/40
•              =0.5