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

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

Name: 2. Six windows A, B, C, D, E and F are shown. The trajectory of a bal
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Description: 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 aboutthe vertical and horizonta

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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PROBLEM A cannonball is launch from top of a mound with an initial velocity of 10 m/s at an angle of 30°. Let's signify the vertical direction with z and the horizontal direction with x. The initial position of the ball is zo = 1 m. Find the distance of the cannonball when it reaches the ground b.) How long does it take for the cannonball to reach the ground? c. Find the maximum height of the ball. d. What is the x-coordinate when the cannon ball reaches the maximum height? e. Find the time when the ball reaches its maximum height.
E7. A ball is thrown upward with an initial velocity of 14 m/s. Using the approximate value of g = 10 m/s^2, what are the magnitude and direction of the ball’s velocity a. 1 second after it is thrown? b. 2 seconds after it is thrown? E8. How high above the ground is the ball in exercise 7 a. 1 second after it is thrown? b. 2 seconds after it is thrown? only need question 8, the rest is for reference
1. A person kicks a ball horizontally off of a cliff 8.3 m high and it lands 22 m away on the beach. a) Sketch the situation here with labeled events b) How long does the ball take to land? c) What was the initial velocity of the ball? d) How would the time change for the ball to hit the beach if the person hit it really hard? How about if they just let it drop? Explain your answer with sketches and words. hit horizontally dropped hit harder horizontally
Situation 2. A ball was thrown at an angle of 60° with respect to the vertical. It travels a distance of 70m horizontally and 2m below measured vertically from its point of release. 60° * 2 m 70 m . Calculate the total time of flight of the ball. a. 2.73 sec b. 2.94 sec A. c. 5.01 sec d. 4.65 sec What is the velocity of the ball when it lands on the ground? a. 28.20 m/s B. b. 15.10 m/s c. 23.80 m/s d. 24.17 m/s
1. Draw a qualitative motion diagram (including both velocity and acceleration vectors) for the following objects in the following situations: Be sure to show the vector subtraction that supports how you got your acceleration vectors. a) Viewed from above, a car traveling around a traffic circle having radius R at constant speed. b) A person in a perfectly circular roller coaster loop-de loop having radius R. (Note: higher speed at the bottom of the loop than the top)
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. You throw a ball toward a wall at speed 25.0 m/s and at angle 0 = 40.3° above the horizontal. The wall is distance d =24.3 m from the release point of the ball. a. How far above the release point does the ball hit the wall? b. What are the horizontal and vertical components of its velocity as it hits the wall? c. When it hits, has it passed the highest point on its Trajectory?
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.
4. A ball is projected with an initial upward velocity component of 80 ft/sec and a horizontal velocity component of 100 ft/sec. a) Find the position and velocity of the ball after 2sec, 3 sec and 6 sec. b) How long a time is required to reach the highest point of trajectory? c) How high is this point? d) How long a time is required for the ball to return to its original level? e) How far has it traveled horizontally during this tme. Show your results in a neat sketch to show all features cearly.
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? ?????
2. A ball is kicked by a student at an initial height of 50 cm above the ground. The ball travels 15 m to enter an open window Ay above the ground. The ball is kicked at an angle of 35° above horizontal and at a speed of 16 m/s. A: What is the height of the window? B: At each star please sketch V,, V, and a. C: What is the ball's speed when the ball enters the window? D: Where on the ball's flight is the acceleration the smallest value E: Consider the kick only. Assume the ball starts from rest. If I were to double the mass of the ball then how would the nature of the kick change to get the same initial conditions? Explain using Newton's first law.
A man threw a rock towards the sea from a cliff that is 20.0 m tall. If the rock was released 30.0° above the horizontal with an initial velocity of 6.0 m/s, A. What is the maximum height reached by the projectile? B.Determine its total time of flight. C.At what horizontal distance from the cliff does it attain its maximum height? D. How far from the cliff will the rock hit the sea?