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# A block of mass m having charge q is placed on smooth table and connected to wall through an unstreched spring constant k. A uniform electric field E0 is switched on at t=0 What will be the maximum speed acquired by the block is

Arun
25763 Points
2 years ago

I ll find the Amplitude.

$Eq-kx=ma\\=>Eq-kx=0 \, for\, a=0\\=>x=Eq/k$

Here you can see in the first expression that acceleration is proportional to -x that's why it is SHM
Khimraj
3007 Points
2 years ago
Consider the situation shown in the below figure.
Then,
F = qE, F = –Kx Where x = amplitude qE = – Kx or x = −qEK