2.3 Apparent Weightlessness

Question 1

When can we feel weightless. Examples

Answer 1

• jumping upwards on a trampoline

- travelling in an air plane that hits an air pocket

Question 2

What is free fall?

Answer 2

Accelerating due to gravity at 9.81 ms^-2 downwards

Question 3

What is being weightless?

Answer 3

when the only force we feel is the gravitational one, no reaction force etc.

Question 4

Does feeling weightless involve the reaction force?

Answer 4

no, it is only at non-contact situations