Given that the gravitational constant is 7 X 10-11 Nm2kg-2, what is the force of…

Physics WAEC 1990

Given that the gravitational constant is 7 X 10-11 Nm2kg-2, what is the force of attraction between 106kg mass of lead hanging one metre away from a 103kg mass of iron?

  • 7 x10-20N
  • 7 x 10-5N
  • 7x10-2N checkmark
  • 7x103N
  • 7x100N

The correct answer is: C

Explanation

F =
Gm1m2/r2
=
7 x 10-11 x 106 x 103/1m
= 7 x 10-2
Previous Question Next Question

Leave A Comment