Question

Amit buys a few gram of gold at the poles as per the instruction of one of his friends. he hands over the same when he meets him at the equator. will the friend agree with the weight of gold brought? if not, why? (start the value of g is greater at the poles than at the equator)​

Answer 1

Answer:

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Explanation:

Let m be the mass of the gold bought.

Also, let the acceleration due to gravity at poles and at equator be g

p

and g

e

respectively.

Acceleration due to gravity at poles is slightly greater than that at equator.

∴ Weight of gold at poles W

p

=mg

p

Weight of gold at equator W

e

=mg

e

But as g

e

<g

p

⟹W

p

>W

e

Hence the weight of gold is slightly less at equator.

So the friend will not agree with Amit about the weight of gold bought.

Answer 2

Answer:

Since the acceleration due to gravity is less at equator as compared to that at poles, the weight of the gold will be less at the equator than at the poles. Hence, Amit's friend won't agree with the weight of the gold bought since it would be less than what he is expecting.