projectile motion

Question 1

what is projectile motion

Answer 1

the movement of an object or human body in the air

Question 2

factors affecting the horizontal displacement of projectile motion

Answer 2

Height of release
Angle of release
Speed of release

Question 3

height of release

Answer 3

release height below landing height=optimum angle of release above 45
release height greater then landing height=below 45
landing height and release height are equal=45

Question 4

45 degrees example

Answer 4

long jump

Question 5

above 45 degrees example

Answer 5

basket ball shot

Question 6

below 45 degrees example

Answer 6

shot put

Question 7

speed of release

Answer 7

greater the velocity left from hand, greater the horizontal displacement

Question 8

height of release

Answer 8

greater release height, greater horizontal displacement
release of highest point of ground=gain max horizontal displacement

Question 9

factors affecting flight paths of different projectiles

Answer 9

weight and air resistance affect projectiles when in the air
dependent on whether projectile has a flight path that is a true parabola or a distorted parabola

Question 10

projectiles with large weight

Answer 10

large weight force=small air resistance=true parabolic flight path
e.g shot put

Question 11

projectiles with small weight

Answer 11

small weight force=more affected by air resistance=distorted parabolic flight path

Question 12

factors affecting stability

Answer 12

height of the centre of mass
base of support
line of gravity
mass of the performer