projectiles Flashcards
1
Q
what is a projectile
A
an object that moves with constant horizonal velocity whilst simultaneously accelerating vertically due to gravity. This acceleration is constant
2
Q
how do you calculate the horizontal component
A
uH = u cos@
3
Q
how do you calculate the vertical component
A
uV = u sin@
4
Q
the horizontal velocity will …..
A
always stay the same
5
Q
what is newtons second law ?
A
the acceleration of an object varies directly with the unbalanced force and inversely with its mass
AND
F = m a / W = m g
6
Q
what is newtons 1st law
A
an object will remain at rest or will remain at constant velocity unless acted on by an unbalanced force
