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ziro4ka [17]
3 years ago
12

A child with a mass of 20 kg sits at a distance of 2 m from the pivot point of a seesaw. where should a 16-kg child sit to balan

ce the seesaw g

Physics
1 answer:
Maksim231197 [3]3 years ago
4 0
In the above problem, we need to find mass of the second child, so that the Center of Mass remains at the origin( pivot).

CM= m1r1+m2r2/m1+m2
0= 20*-2+16*r2/20+16
r2= 40/16
r2= +2.5 m

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a car moving with a speed of 10 metre per second is accelerator at the rate of 2 metre per second square find its velocity after
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djverab [1.8K]
<h2>Answer: about the same size of the gap  or slit</h2>

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Note that the principal condition for the occurrence of this phenomena is that the obstacle must be comparable in size (similar size) to the size of the wavelength.

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<u />

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