A wave is described by the equation

.


(A) Find the time period and the wavelength? (B) Write the equation for the velocity of the particles. Find the speed of the particle at x = 10 cm at time t = 001 s. (C) What are the speeds of the particles at x = 30 cm, 50 cm and 70 cm at t = 001 s?


(D) What are the speeds of the particles at x = 10 cm at t = 0011, 0012 and 0013 s?


A. 20 ms, 40 cm


Here



So, T=20ms


Again,


From the question,




B. zero


We know that






C. zero


For all x=(2n+1) and t=0.01s



D. 97 cm s1, 18 cm s1, 25 cm s1


At t=0.011s



At t=0.012s



At t=0.013s



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