In fig. 16-47a, string 1 has a linear density of 3.00 g/m, and string 2 has a linear density of 5.00 g/m. They are under tension due to the hanging block of mass M= 800 g. Calculate the wave speed on (a) string 1 and (b) string 2 (Hint: When a string loops halfway around a pulley, it pulls on the pulley witii a net force that is twice the tension in the string) Next the block is divided into two blocks (with `M_(1)+M_(2)=M)` and the apparatus in tearranged as shown in fig. 16-47b. Find (c) `M_(1) and (d) M_(2)` such that the wave speeds in the two strings are equal.

Answer

(a) 36.2m/s; (b) 28.0m/s; (c) 300g (d) 500g