7.7 Projectile Motion 1

Question 1

what is a projectile

Answer 1

an object acted only on by the force of gravity

Question 2

what is the acceleration of a projectile always

Answer 2

-g because force of gravity acts downwards

therefore the acceleration only effects the vertical motion of the object

Question 3

why is the horizontal velocity of the object constant

Answer 3

because the acceleration of the object doesn’t have a horizontal component

Question 4

velocity in vertical projection

Answer 4

v= u-gt

Question 5

displacement in vertical projection

Answer 5

y = ut - 1/2 gt^2

Question 6

if an object is projected faster then what will happen

Answer 6

the further away it’ll fall

Question 7

horizontal displacement in horizontal projection

Answer 7

x = ut

Question 8

vertical displacement in horizontal projection

Answer 8

y= 1/2 gt^2

• no vertical component of its initial velocity

Question 9

horizontal component of velocity in horizontal projection

Answer 9

v = u

Question 10

a vertical component of velocity in horizontal projection

Answer 10

v = -gt