Question

the total energy of a body of a mass 100g performing SHM is 0.2 J.find its maximum speed​

Answer 1

Answer:

2$ms^{-1}$

Explanation:

energy of SHM is given by $\frac{1}{2}$mω²A²

∴ 0.2= (0.1)($\frac{1}{2}$)ω²A²

 ω²A²=4

 ωA=2----(1)

speed of SHM is given by v = ω$\sqrt{A^{2}-x^{2} }$

 ∴ max speed= ωA when x=0;

     max speed=2$ms^{-1}$

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