Newton’s Law of Universal Gravitation – Practice

Questions:

1) Determine the gravitational force of attraction between two 10kg bowling balls separated by a distance of 50cm:

 

2) Use the following data to determine the gravitational field strength on the Moon:

Mass of the Moon = 7.4 × 1022 kg

Radius of Moon = 1737 km

 

3) Felix Baumgartner jumped to Earth from an altitude of 39,045 meters, in what was known as the Mission to the edge of space. Determine the gravitational field strength he would have experienced just before he jumped:

Mass of the Earth, ME = 6.0 × 1024 kg

Radius of Earth, rE = 6.371 × 106 m

Quick Answers:

1) 2.668 × 10-8 N attraction

2) 1.64 m/s2 

3) 9.74 m/s2 

Worked Answers: