Find the amplitude of the S.H.M whose displacement y in cm is given by equation
y= 3sin 157t +4cos157t where t is time in seconds.
50Hz
20Hz
40Hz
25Hz
The amplitude and the time period in a S.H.M. is 0.5 cm and 0.4 sec respectively. If the initial phase is π2 radian, then the equation of S.H.M. will be