Question

a spring balance shows a weight of 40 gf at equator for a given body,its weight at the poles will be

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Answer 1

Answer:

ANSWER

Weight of box measured at north pole ⇒

w

p

=196N=Mg,M=19.6

Weight of box measured at equator,

w

e

=w

p

−w

2

R×M

=196−(7.3×10

−5

)

2

×6400×10

3

×M

[w=7.3×10

−5

radiusR=6400km]

=196−53.29×10

−10

×6.4×10

6

×19.6

=196−0.0341×19.6

w

e

=195.32N