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**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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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.

- #2

Doc Al

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Hint: Use a bit of calculus.

- #3

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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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Exactly. So find expressions for v and a. Then combine them with the expression for x.how??

for v i use dx/dt

for a i use dv/dt

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can u show me the work step... can?Exactly. So find expressions for v and a. Then combine them with the expression for x.

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You were given an expression for *x*, so find *dx/dt* for that expression.

Last edited:

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tq very much...You were given an expression forx, so finddx/dtfor that expression.

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