JAMB Physics 2007 Objective — Question 43
Question 43 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2007 Objective paper, with the correct answer and a full explanation.
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Two spheres of masses 5.0kg and 10.0kg are 0.3m apart. Calculate the force of attraction between them. [G=6.67x10^-11 Nm2kg-2]
- A. 3.71x10^-8 NCorrect
- B. 3.57x10^-2 N
- C. 4.00x10^-2 N
- D. 3.50x10^-10 N
Explanation
F = Gm1m2/r2 = (6.67x10^-11 x 5 x 10)/0.3^2 = 3.71x10^-8 N.
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