Solve problems involving the Earth’s gravitational acceleration for objects in free fall

Free Falling

2.3

Free Falling

	Free Fall
	Motion of an object is affected by gravitational force (no other forces - air resistance, friction)

Gravitational acceleration, \(\text{g}=9.81\text{ ms}^{-2}\)
- In calculation, when object falls down, value of g is positive (+), when obejct is thrown up, the value of g is negative (-).

In air	In vacuum	Stroboscope

Free Falling

2.3

Free Falling

	Free Fall
	Motion of an object is affected by gravitational force (no other forces - air resistance, friction)

Gravitational acceleration, \(\text{g}=9.81\text{ ms}^{-2}\)
- In calculation, when object falls down, value of g is positive (+), when obejct is thrown up, the value of g is negative (-).

In air	In vacuum	Stroboscope