Question

I am asking how 4.002 came

please explain​

Answer 1

Explanation :

Used formula

$\sf{F = \frac{Gm_1m_2}{r {}^{2} } }$

By using formula

$\sf\implies{F = \frac{6.67 × 10 {}^{ - 11} × 75 × 80}{1 {}^{2} } }$

Multiplying in numerator 6.67 × 75 × 80

We get

$\sf\implies{ \frac{40020 \times 10 {}^{ - 11} }{1 {}^{2} } }$

We also write

$\sf{40020 = 4.0020 × 10 {}^{4} }$

We multiply again in numerator

$\sf{10 {}^{4} \times 10 {}^{ - 11} = 10 {}^{ - 7} }$

We write remaining

$\sf\implies{ \frac{4.002 \times 10 {}^{ - 7} }{1} = 4.002 \times 10 {}^{ - 7} }$

Answer : 4.002 × 10^-7 N

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Answer 2

Hi Mithi good morning, how are you?

Itne dino se kahan thei aapp?

@itzAbinash.