MODULE 5 IQ1 Flashcards
1
Q
what is the only force acting on a projectile?
A
gravity
2
Q
what did galileo establish?
A
projectile motion is a result from constant horizontal motion, combined with a constant vertical acceleration. object’s mass has no effect on the time it takes to fall.
3
Q
vertical motion calculations
A
a(y) = -9.8
v(y) = u(y) + a(y)t
s(y) = u(y)t +1/2a(y)t^2
v(y)^2 = u(y)^2 + 2a(y)s(y)
4
Q
horizontal motion calculations
A
a(x) = 0
u(x) = v(x)
s(x) = u(x)t
v(x)^2 = u(x)^2
5
Q
what angle of θ gives maximum height?
A
45
6
Q
what is drag?
A
opposite direction of motion otherwise known as resistance in the air.
