Simple Harmonic Motion

  • Thread starter vooov92
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  • #1
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Please help me,

Question
The equation of motion of a mass is given as x = (0.2m) sin (3t). Find the velocity and acceleration of the mass when the object is +5cm from its equilibrium position.
 

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  • #2
Doc Al
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Given position, how do you find velocity and acceleration? (What are the definitions of velocity and acceleration?)

Hint: Use a bit of calculus.
 
  • #3
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how??
for v i use dx/dt
for a i use dv/dt

so how to solve it, i also not understand the statement... anyone can help me
 
  • #4
Doc Al
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how??
for v i use dx/dt
for a i use dv/dt
Exactly. So find expressions for v and a. Then combine them with the expression for x.
 
  • #5
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Exactly. So find expressions for v and a. Then combine them with the expression for x.

can u show me the work step... can?
 
  • #6
Redbelly98
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You were given an expression for x, so find dx/dt for that expression.
 
Last edited:
  • #7
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You were given an expression for x, so find dx/dt for that expression.

tq very much...
 

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