1. A cannonball is fired from a cannon and follows a parabolic path as a projectile. Is thereany point along its path where the velocity and acceleration vectors are perpendicularto each other? Is there any point along its path where the velocity and accelerationvector are parallel to each other? Explain.2. If the average velocity of an object over a given time interval is zero, what can be saidabout the distance travelled by the object during that time interval? Explain.3. After walking 18 km [N 35° E], you find yourself 6 km [N 50° W] of a barn. Wherewere you relative to the barn before you began your walk?4. The navigator of an airplane plans a flight from one airport to another airport that is ata location of 850 km [S 52º E] of the first airport. The weather office informs him ofa prevailing wind blowing to the east at 60 hm/h. The pilot wants to maintain anairspeed of 300 kmih. What heading should the navigator give the pilot? How long willthe Aight take?5. A bomber that is diving at an angle of 40° to the horizontal releases a bomb at analtitude of 700 m. The bomb hits the target on the ground 5 s after being released.a. What was the velocity of the bomber when it dropped the bomb?b. How far (horizontally) in front of the point of release was the target?6. A car drives north on a highway at 40 km/h and then turns þack and drives southbach to the starting point at 60 km/h. What is the average speed of the car?7. A train travelling on level ground has a horizontal speed of 25 km/h. Raindrops fallingagainst its side windows make traces inclined at 30° to the vertical. Ignore airturbulence and assume there is no wind blowing.a. What is the velocity of a raindrop with respect to the Earth?b. What is the velocity of a raindrop with respect to the train? 8. Given the velocity-time graph below, draw the corresponding acceleration-timeposition-time graphs on the axes provided. The object starts from an initial position of-2 M.d (m) 108.42t (s)-2-4-6-8-1012356789.10v (m/s) 10842t (s)-2-4-6-8-1012467810a (m/s*) 10842t (s)-2-4-6-8-1012347100o3.

Since you have asked more than 3 questions, according to our guidelines we would only solve three…

1. A cannonball is fired from a cannon and follows a parabolic path as a projectile. Is there any point along its path where the velocity and acceleration vectors are perpendicular to each other? Is there any point along its path where the velocity and acceleration vector are parallel to each other? Explain. 2. If the average velocity of an object over a given time interval is zero, what can be said about the distance travelled by the object during that time interval? Explain. 3. After walhing 18 hm [N 35° E1, you find yourself 6 hm [N 50° W] of a barn. Where were you relative to the barn before you began your walh ?

1. A cannonball is fired from a cannon and follows a parabolic path as a projectile. Is there any point along its path where the velocity and acceleration vectors are perpendicular to each other? Is there any point along its path where the velocity and acceleration vector are parallel to each other? Explain. 2. If the average velocity of an object over a given time interval is zero, what can be said about the distance travelled by the object during that time interval? Explain. 3. After walhing 18 hm [N 35° E1, you find yourself 6 hm [N 50° W] of a barn. Where were you relative to the barn before you began your walh ?

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)...

See similar textbooks

Similar questions

A firework is launched with an initial velocity of 30 m/s at an angle of 65 degrees with respect to the horizontal. The horizontal component of the firework’s velocity, just before it reaches the peak of its motion (where it will explode). b. The vertical component of the firework’s velocity, at a time 0.5 seconds after it was launched. c. The magnitude and direction of the acceleration of the rocket, at a time 0.5 seconds after it was launched.
A projectile is launched at an angle of 20° above the horizontal with a launch velocity of 25 m/s.a.) What is the maximum height reached by the object? b.) What is the total flight time (between launch and touching the ground) of the object? c.) What is the horizontal range (maximum x above ground) of the object?
For a lab report, I have to answer these questions and am confused on how to get these answers from the graphs. The lab is on projectile motion and velocity. I basically threw a ball upwards and recorded its flight on tracker. The two pictures I attached show the vertical velocity by versus time and the horizontal velocity vx versus time. From the velocity vs. time graph(s) determine the acceleration of the ball independently for each component of the motion as a function of time. What is the acceleration of the ball just after it is thrown, and just before it is caught or lands? What is the magnitude of the ball’s acceleration at its highest point? Is this value reasonable? Determine the launch velocity of the ball from the velocity vs. time graphs in the x and y directions. Is this value reasonable? Determine the velocity of the ball at its highest point. Is this value reasonable?
▼ Part A A walker and a runner are on a straight horizontal section of a track. In the reference frame of the Earth, the walker has an initial position XEwi = +5.0 m and the runner has an initial position XEri+15.0 m. Three seconds later, the walker has a position XEwf = +11 m and the runner has a position XErf +3.0 m. What is the runner's velocity in the reference frame of the walker, vwr? ► View Available Hint(s) O Vwr= -2.0 m/s O Vwr=-6.0 m/s O VW-18.0 m/s O Vwr= -4.0 m/s Review Submit
M1
c. Is it possible for a body moving on a circular track to have zero acceleration? Explain vividly if Yes or No
. A stone is thrown from level zero at 30° above horizontal. It lands at the same level 20 m away.a. What is the initial speed of the stone?b. What is the maximum height that it reaches during the flight?c. How long does the whole flight take?
Suppose that the gravitational acceleration on a certain planet is only 3.0 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 18 m/s. a. What is the velocity of the ball 4 seconds after it is thrown? b. How much time elapses before the ball reaches the highpoint in its flight?
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
Coasting due West on your bicycle at 9.6 m/s, you encounter a sandy patch of road 6.7m across. When you leave the sandy patch your speed has been reduced by 3.8m/s to 5.8 m/s. a. Assuming the sand causes a constant acceleration, what was the bicycle’s acceleration in the sandy patch? Give both the magnitude and direction. b. How long did it take to cross the sandy patch? c. Suppose you enter the sandy patch with a speed of only 7.6 m/s. Is your final speed in this case 3.4m/s, more than 3.4m/s, or less than 3.4 m/s? Explain.
A hot air balloon flying horizontally at a velocity of 50m/s and at an altitude of 475 meters when one if its sandbags falls off. A. How long (in seconds) does it take the sand bags to reach the ground? B. What horizontal distance (in meters) will the bag travel before it strikes the ground?
A ball is thrown horizontally from a cliff of height 90 meters with an initial speed of 45 m/s. A. How far from the base of the cliff will it strike the ground? B. What is its vertical component of velocity when it strikes the ground? C. What is its speed when it strikes the ground?