Pieces and Parts
List the immediately known x values
In Pirates of the Caribbean, a cannon was fired at an enemy ship. The muzzle velocity was 60.0 m/s. At what angle above the horizontal must the cannon have been aimed in order to hit the enemy ship 320. m away?
change in x = 320 m
acceleration in x = 0 m/s/s
This variable is the only one that is the same for both x and y directions.
What is time?
An object is launched at a velocity of 20 m/s in a direction making an angle of 25° upward with the horizontal.
What are Vx and Vy?
Vx = 18.13 m/s
An astronaut on the planet Zircon tosses a rock horizontally with a speed of 6.95 m/s. The rock falls through a vertical distance of 1.4 meters and lands a horizontal distance of 8.75 meters from the astronaut. What is the acceleration of gravity on Zircon?
-1.76 m/s/s
The hypotenuse of a triangle with a height of 2 m and a length of 4 m
what is 4.47 m?
List all the immediately known y variables
In the movie Thelma and Louise, the two actresses drove off a cliff at the end. In preparation for the scene, their stunt doubles determined that the cliff was 50.0 m high.The director wants the car to land 90.0 m from the base of the cliff close to the camera location. How fast must the car be travelling in order to land at this location?
Change in y = 50 m
a = -9.8 m/s/s
v = 0 m/s
The acceleration of x when there is no engine or wings.
What is 0?
What is x?
A golf ball is struck with a five iron on ground level. It lands 92.2m away 4.3 seconds later. What was the angle and magnitude of the initial velocity?
30.03 m/s at 45 degrees
An apple!
List the immediately known variables in the x directions for the following problem.
In the movie Thelma and Louise, the two actresses drove off a cliff at the end. In preparation for the scene, their stunt doubles determined that the cliff was 50.0 m high.The director wants the car to land 90.0 m from the base of the cliff close to the camera location. How fast must the car be travelling in order to land at this location?
Change in x = 90.0 m
acceleration x = 0 m/s/s
The acceleration of gravity.
What - 9.8 m/s2
What is the magnitude of the angle when the X direction is 10 and the Y directions is 11?
47.7 degrees
A projectile is fired from the ground with an initial velocity of 45 m/s at 53 degrees. How long will the projectile be in the air?
7.33s
Solve this for t.
0 = 2t2 + 4t + 1
-0.29, -1.71
List all the variables available for this problem.
A golf ball is struck with a five iron on ground level. It lands 92.2m away 4.3 seconds later. What was the angle and magnitude of the initial velocity.
time is 4.3 s
change in y is 0
a of x is 0
a of y is -9.8 m/s/s
The height of Mt.Washington.
What is 6,288 ft?
This is the best angle to achieve maximum displacement in the x direction
what is 45 degrees?
In the movie Thelma and Louise, the two actresses drove off a cliff at the end. In preparation for the scene, their stunt doubles determined that the cliff was 50.0 m high.The director wants the car to land 90.0 m from the base of the cliff close to the camera location. How fast must the car be travelling in order to land at this location?
28 m/s
What equation uses inital and final velocity, time and acceleration?
a = ( V final - V inital) /t
What are the known variables?
A spear thrown at 30 m/s toward a bulls-eye directly in front of her. The spear takes .28 seconds to reach the target.
velocity of x = 30 m/s
velocity of y = 0 m/s
t = .28 s
a of x = 0 m/s/s
a of y = -9.8 m/s/s
The formula that starts with the change in displacement.
Change in Displacement = Vot + 1/2at2
Sine is typically used to find the magnitude on this axis.
What is y?
In Pirates of the Caribbean, a cannon was fired at an enemy ship. The muzzle velocitywas 60.0 m/s. At what angle above the horizontal must the cannon have been aimed inorder to hit the enemy ship 320. m away?
30.3 or 59.5
What equation is based upon the change in displacement?
Change in y = v inital * t + 1/2 a t2