2. Six windows A, B, C, D, E and F are shown. The trajectory of a ball is shown as it passes the windows. Hint: remember that you can think about the vertical and horizontal motion separately. Think about what you know about the vertical and horizontal velocities. a. The windows A, B, C are identical in size and regularly spaced vertically. Rank the times needed for the ball to pass the windows starting with the window having the largest time. (Answers might be A=C>B for example.) D

4. A ball is shot from a cannon at 50 m/s at an angle of 30° above the horizontal. a. Draw a labeled diagram with all relevant information. Note directions you chose to be +x and +y. b. How far has the ball traveled horizontally when it reaches its highest point in the flight? How high is it at this point? c. What is the speed of the ball at the highest point in its flight?

Q2. A plane has an airspeed of 915 km/h. The pilot sets the heading at [S34°E]. There is an 84 km/h wind headed [W12°N]. [A7, C4] a) Draw and label the vector diagram for the wind and plane's velocities. b) Calculate the velocity of the plane as seen by an observer on the ground.

A 54 g ice cube can slide without friction up and down a 30∘ slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 23 N/m . When the ice cube is released, what total distance will it travel up the slope before reversing direction?   Δs = 43 cm     The ice cube is replaced by a 54 g plastic cube whose coefficient of kinetic friction is 0.20. How far will the plastic cube travel up the slope?   ?????

Whale sharks swim forward while ascending or descending. They swim along a straight-line path at a shallow angle as they move from the surface to deep water or from the depths to the surface. In one recorded dive, a shark started 50 m below the surface and swam at 0.85 m/s along a path tipped at a 13° angle above the horizontal until reaching the surface. a. What was the horizontal distance between the shark's starting and ending positions?

include a picture or description of your coordinate system (origin, positive direction).

A ball is thrown at an initial height of 90 feet at an initial velocity of 55 feet/second at an angle of 75 degrees. Given the parametric equations y = 16t2 + Vo · Sin(0)t + ho and r = Vo Cos(0)t. When doing calculations, carry 5 digits of accuracy, so your round off does not build up. a. What is the ball's height in 3 seconds? feet. b. When will the object hit the ground? seconds. c. How far horizontally will the ball be when it hits the ground? feet. d. When will the ball be at its maximum height? seconds. e. What is the ball's maximum height? feet. f. How far horizontally will the ball be when it reaches its maximum height? feet

For A,B,and C

Please help, thank you.

An athlete threw the ball at an angle of 30° up and the left from the ground at a velocity of 90 m/s. a. What was the horizontal velocity of the ball? b. What was the vertical velocity of the ball?