3/5 Flashcards
1
Q
what is the upwards force from the air called?
A
air resistance.
2
Q
when a skydiver steps out of an aeroplane what is her force of gravity greater then?
A
her force of gravity is greater than the upward force from the air.
3
Q
when she opens her parachute what happens?
A
the force of air resistance increases so its greater than her of her force of gravity.
4
Q
what else happens when she opens her parachute?
A
she slows down.
5
Q
what are the two things that are increasing while she is falling?
A
her speed and the force of air resistance.
6
Q
if the forces are unbalanced on a parachute what happens?
A
the people in it accelerate downwards.
