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Dear sir, please send the solution to attach ed file

Dear sir, please send the solution to attach ed file

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Grade:12th pass

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
y = 5 Sin (20t + pie/3) 
The least time after which acceleration become zero = ? 
Velocity = 100 Cos  (20t + pie/3) 
Acceleration = -2000tSin(20t + pie/3)
a = 0 
(20t + pie/3)  = pie ( because it is least value at which sin function will become zero again)
20t = 2pie/3 
t = pie/30 
D is correct option 
Good Luck 
 
 

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