Physics: Ais a depository for carbon dioxide and tropical forests are very efficient.

Ais a depository for carbon dioxide and tropical

itsyogirl12

14.05.2021

a) F =489.95 N

b) W = 490 N

c) both have same value

Explanation:

The force of gravitation between two objects is given by Newton's Law of Gravitation. According to this law:

$F = \frac{Gm_{1}m_{2}}{r^{2}}\\$

where,

F = Gravitational Force between the person and Earth = ?

G = Universal Gravitational Constant = 6.67 x 10⁻¹¹ Nm²/kg²

m₁ = mass of peerson = 50 kg

m₂ = mass of earth = 5.98 x 10²⁴ kg

r = distance between person and earth = radius of earth = 6.38 x 10⁶ m

Therefore,

$F = \frac{(6.67\ x\ 10^{-11}\ Nm^{2}/kg^{2})(50\ kg)(5.98\ x\ 10^{24}\ kg)}{(6.38\ x\ 10^{6}\ m)^{2}}\\\\$

F = 489.95 N

The weight of the person will be given as:

$W = m_{1}g\\W = (50\ kg)(9.8\ m/s^{2})$

W = 490 N

Both have same value

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