A man and his friend have masses 70kg and 60kg ... - WAEC Physics 2016 Question
A man and his friend have masses 70kg and 60kg respectively. If they are seated 1.0m apart, calculate the gravitational force of attraction between them. (G = 6.67 x 10-11 Nm2 kg-2)
A
1.59 x 10-14 N
B
2.80 x 10-7 N
C
1.30 x 10-2 N
D
6.30 x 1013 N
correct option: b
F = (\frac{GM_1M_}{r^2})
= (\6.67 \times 10^{-11} \times 70 \times 60}{1^2})
= 2.8014 x 10-7 N
Please share this, thanks:
#WAEC #WAEC
Add your answer
No responses