A needle of a sewing machine moves along a path of amplitude 4 cm with frequency 5 Hz. Find its acceleration 1/30 s after it has crossed the mean position.

Question:

10. A needle of a sewing machine moves along a path of amplitude 4 cm with frequency 5 Hz. Find its acceleration 1/30 s after it has crossed the mean position.

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Given & Formula :-

Solution :-

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Forty electric bulbs are connected in series across a 220 V supply. After one bulb is fused, the remaining 39 are connected again in series across the same supply. The illumination will be

If a body is executing simple harmonic motion then

Two simple harmonic motions of angular frequency 100 rad/sec and 1000 rad/s have the same displacement amplitude. The ratio of their maximum acceleration is

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Given & Formula :-

Solution :-

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