suppose a heavy manhole cover requires a force of 160n to open it magine you have a steel bar 1 m long pivoted at a point 0.1m from the end to lever to open the heavy manhole cover if you press donon with a force of 20n will the upward force you generate be enough to lift the manhole cover
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Examples of zero vectors among the following are ......(MAQ)a) The velocity of particle when particle is acceleratingb) The velocity of particle whe
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