Angles
Regardless of initial speed what is the angle that would make a projectile stay in the air the longest?
90 degrees
A ball is thrown horizontally at a speed of 24 m/s from the top of a cliff. If the ball hits the ground 4 s later, approximately how high is the cliff?
78 m
Draw the path of a projectile launched from the ground at a 45 degree angle
should be a semi-circle
Solve for the equlibrant of a 10N Force north and a 10N force East (be sure to include direction)
14.1 SW
Regardless of speed what is the angle that would make the projectile travel the greatest y distance
90 degrees
What is the acceleration of a projectile in the y direction
-9.81 m/s^2
A projectile is thrown horizontally from a cliff h meters high, it travels a distance of d m, if acceleration due to gravity is g m/s^2, express an equation for t using the above variables only.
t = square root of 2h/g
What is the greatest Regents Science class of all time?
Regents Physics circa 2023/2024
Regardless of speed what is the angle that would make the projectile travel the greatest x distance
45 degrees
What is the acceleration in the x direction of a projectile
0 m/s^2
Two stones are thrown from a cliff, stone A at 15 m/s and stone B at 30 m/s, compare the time it takes to reach the bottom of the cliff of each stone
Each stone reaches the bottom at the same time.
Why does a projectile launched at 45 degrees travel a greater range than a projectile launched at 30 degrees
Because it is in the air longer
If a ball is launched with a 20 degree angle above the horizontal at a velocity of 10 m/s what are the component velocities (x and y label them)
x: 9.4 m/s
y: 3.4 m/s
What is the initial velocity in the y-direction of a projectile thrown horizontally?
0 m/s
Draw the graph of distance and time of a ball that is launched horizontally for the x direction only
Should be a graph with a constant positive slope
Give me the three things we can always fill in our x y chart if an object is launched horizontally
x acceleration is zero m/s^2
y acceleration is -9.81 m/s^2
y vi is 0 m/s
If a ball is thrown at an angle of 40 degree above the horizontal and the horizontal component is 12 m/s what is the initial overall velocity
15.7 m/s
What happens to the velocity in the x direction
It remains constant
Draw a graph of a projectile dropped horizontal of the speed in the x direction and the time.
Should be a straight horizontal line (no slope)
What variable can cross sides of an x and y chart
time only