40. Harry accidentally falls out of a helicopterthat is traveling at 15 m/s. He plunges intoa swimming pool 2 seconds later. Assumingno air resistance, what was the horizontaldistance between Harry and the swimmingpool when he fell from the helicopter?41. Refer to the previous problem.a. What are the horizontal and vertical com-ponents of Harry's velocity just as he hitsthe water?b. Show that Harry hits the water at a speedof 25 m/s.

40. Given: The velocity of the helicopter is 15 m/s. The time duration is 2 s.

Answered: 40. Harry accidentally falls out of a…

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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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. d. What is the cannonball’s range?
An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers. If the plane is traveling east at 40 m/s and is 100 meters above the ground: a.Using the release point as the origin, find the time it takes for the package to reach the ground once released. b.How far east of the release point does the package strike the ground? Also, What is the speed of the package as it hits the ground? c.With what angle (below the horizontal) does the pack strike the ground? Please show work for all of the parts.
You've just finished your exams, and in the moment of joy you run to the nearest cliff and throw your physics textbook into the air. The top of the cliff is 50 m above the ground and the textbook is thrown with a velocity of 20 m/s at an angle of 60 degrees above the horizontal. a. Find the maximum height above the ground that the textbook reaches. b. Find the time the textbook is in the air c. Find the distance the textbook travels horizontally. d. Find the final velocity of the textbook the instant before it hits the ground.
If you throw a ball with an initial horizontal velocity of 20 m/s and an initial vertical velocity of 40 m/s. a. What will be the vertical displacement after 3 seconds? b. What will be the horizontal displacement after 3 seconds? c. What will be the vertical velocity after 3 seconds? d. What will be the horizontal velocity after 3 seconds?
An object is shot from the edge of a cliff 125m above the ground level with an initial speed of 105m/s at an angle of 37.0° with the horizontal. a. Determine the time taken by the projectile to hit the ground. b. Determine the range of the projectile as measured from the base of the cliff. c. At the instant just before the projectile hits the ground, find the horizontal and vertical components of its velocity.
. 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?
1. In a practice session, Iris hits a ball horizontally with a speed of 36 m/s from a height of 3.1 m. The ball travels until it hits the ground. a. Determine the time the ball is in the air. b. Determine the horizontal distance traveled by the ball. c. Calculate the ball’s velocity as it hits the ground.
While playing “Angry Bird”, Red was shot with an initial speed of 17 m/s at an angle 20° abovethe horizontal. The bird moves along parabolic trajectory until it reaches its target. a. Calculate the time needed by Red in the air.b. Deduce the time taken by Red to reach the highest point.c. Calculate the range of Red.d. Calculate the x and y components of the final velocity of Red.e. Deduce its final speed .
A ball is thrown at an initial height of 65 feet at an initial velocity of 75 feet/second at an angle of 65 degrees. Given the parametric equations yY = - - 16t + Vo · Sin(0)t + ho and x = 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. seconds. b. When will the object hit the ground? feet. c. How far horizontally will the ball be when it hits the ground? seconds. d. When will the ball be at its maximum height? e. What is the ball's maximum height? feet. feet f. How far horizontally will the ball be when it reaches its maximum height?
y = 25 m/s 35 -20 m 1. As a volcano erupts, one particular lava rock is projected from the mouth of the volcano at 35 degrees above the horizontal, calculate: a. The lava rock's total time in the air. b. Total horizontal distance traveled of the lava rock. c. The rock's final total velocity.
How to solve questions D through F
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?

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