Zach performed several experiments related to gravity. at the end of one experiment, zach concluded that the gravitational force between two objects is directly proportional to the masses of the objects. which set of data did zach use to form this conclusion?

DistanceMass 1Mass 2Force

10 m10 kg15 kg1.0 × 10-10 N

10 m15 kg15 kg1.5 × 10-10 N

10 m10 kg30 kg2.0 × 10-10 N

10 m20 kg20 kg2.7 × 10-10 N

10 m20 kg30 kg4.0 × 10-10 N

Explanation:

Since Zach concluded that the gravitational force between two objects is directly proportional to the masses of the objects, data supporting this conclusion should include measurements of the masses of the objects and the force between them. Furthermore, data should only show changes in the masses. All other factors should remain constant.

Zach should have used the following data to support his conclusion.

DistanceMass 1Mass 2Force

10 m10 kg15 kg1.0 × 10-10 N

10 m15 kg15 kg1.5 × 10-10 N

10 m10 kg30 kg2.0 × 10-10 N

10 m20 kg20 kg2.7 × 10-10 N

10 m20 kg30 kg4.0 × 10-10 N

d. making up measurements to record.