Projectile Flashcards
(7 cards)
1
Q
What is the two motion forms of projectile.
A
1 flying horizontally with a constant speed
2.flying vertically with a varying acceleration. g.
2
Q
What is the steps for calculating horizontal distance.
A
Firstly find the time using h=ut+1/2at^2
Then Use the time to find the horizontal distance
S=v*t.
3
Q
Formula for time of flight
2) time of flight to reach maximum height.
A
1) T=2 usin@/g
2) usin@/g.
4
Q
Formula for maximum height.
A
H= U^2 sin^2 @/ 2g
5
Q
What is the formula for range?
What is the range
A
R= U^2 sin 2@/ g
Rmax is U^2/g.
Range is maximum at @= 45*.
6
Q
Why does g vary in the surface of earth.
A
Coz earth has epilitical shape and rotates around its orbit
7
Q
4equations of motion
A
V=u+at
S=ut+half at^2
V^2 =u^2+2as
S v-u/2*t
When in free fall, change a to g and s to h
