Question

A rocket motor is used for different model rockets that have different masses. The results of tests for a rocket motor are shown in the table.

Relationship Between Mass and Acceleration
Mass (kg)

Acceleration (m/s2)

0.0900

157

0.1000

141

0.1132

124

Given the same amount of force, which conclusion is correct?

(1 point)
Responses

Mass and acceleration have a direct relationship.
Mass and acceleration have a direct relationship.

Increased mass results in reduced acceleration.
Increased mass results in reduced acceleration.

Acceleration increases regardless of mass.
Acceleration increases regardless of mass.

Mass increases with acceleration.

Answer 1

Increased mass results in reduced acceleration.

Reason: With the same force, Newton’s second law gives a = F/m, so as mass increases the acceleration decreases (shown by 157 → 141 → 124 m/s² as mass increases).