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Questions and Answers
What prevents a student standing at the top of a step stool from moving downward?
What prevents a student standing at the top of a step stool from moving downward?
- The step stool is a barrier that blocks the gravitational force.
- The student exerts an upward force on the step stool equal to the gravitational force. (correct)
- The student's mass is not large enough to be affected by gravity.
- The step stool exerts a force on the student in the opposite direction of gravity.
Why does a student standing at the top of a step stool not move downward according to the given information?
Why does a student standing at the top of a step stool not move downward according to the given information?
- The step stool exerts a force on the student equal to the force gravity exerts on the student. (correct)
- The step stool exerts a force on the student in the opposite direction of gravity.
- The student's mass is not large enough to be affected by gravity.
- Gravity does not affect objects at higher elevations.
What role does the step stool play in preventing the student from moving downward according to the given information?
What role does the step stool play in preventing the student from moving downward according to the given information?
- It blocks the gravitational force from reaching the student. (correct)
- It exerts a force on the student equal to the force gravity exerts on the student.
- It reduces the effect of gravitational force on the student.
- It exerts a force on the student in the opposite direction of gravity.
