4. A cannonball is fired on a level ground with an initial velocity of 40.0 m/s at an angle 55° above the horizontal. a. What are the horizontal and vertical components of the cannonball's initial velocity? b. Calculate the cannonball's time of flight. c. Find the cannonball's maximum height above the ground.

4. A cannonball is fired on a level ground with an initial velocity of 40.0 m/s at an angle 55° above the horizontal. a. What are the horizontal and vertical components of the cannonball's initial velocity? b. Calculate the cannonball's time of flight. c. Find the cannonball's maximum height above the ground.

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Description: 4. A cannonball is fired on a level ground with an initial velocity of 40.0 m/s at an angle 55° abovethe horizontal.a. What are the horizontal and vertical components of the cannonball’s initial velocity?b. Calculate the cannonball’s time of flight.

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: Motion In Two Dimensions

Section: Chapter Questions

Problem 13P: A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed...

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A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of vi = 18.0 m/s. The cliff is h = 50.0 m above a body of water as shown in Figure P4.13. (a) What are the coordinates of the initial position of the stone? (b) What are the components of the initial velocity of the stone? (c) What is the appropriate analysis model for the vertical motion of the stone? (d) What is the appropriate analysis model for the horizontal motion of the stone? (e) Write symbolic equations for the x and y components of the velocity of the stone as a function of time. (f) Write symbolic equations for the position of the stone as a function of time. (g) How long after being released does the stone strike the water below the cliff? (h) With what speed and angle of impact does the stone land? Figure P4.13
(a) If a person can jump a maximum horizontal distance (by using a 45 projection angle) of 3.0 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2? (b) Repeat for Mars, where the acceleration due to gravity is 0.38g.
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