Two objects of masses 80kg and 50kg are separated by a distance of 0.2m. If...

WAEC 1991

Two objects of masses 80kg and 50kg are separated by a distance of 0.2m. If the gravitational constant is 6.6 x 10^-11Nm kg, calculate the gravitational attraction between them.

A. 4.9 x 10^-9N
B. 1.3 x 10^-6N
C. 6.6 x 10^-8N
D. 6.6 x 10^-6N
E. 2.6 x 10^-9N

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Correct Answer: Option D

Explanation

F = \(\frac{Gm_1m_2}{r^2} = \frac{6.6 \times 10^{-11} \times 80 \times 50}{0.2 \times 0.2}\)

= 6.6 x 10^-6N

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Two objects of masses 80kg and 50kg are separated by a distance of 0.2m. If...

Correct Answer: Option D

Explanation

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