Part C: Find the height yi from which the rock was launched. Express your answer in meters to three significant figures. Learning Goal:A rock thrown with speed 8.50 m/s and launch angle 30.0° (above the horizontal)travels a horizontal distance of d = 19.0 m before hitting the ground. From whatheight was the rock thrown? Use the value g = 9.800 m/s² for the free-fallacceleration.PROBLEM-SOLVING STRATEGY 4.1 Projectile motion problemsMODEL: Is it reasonable to ignore air resistance? If so, use the projectile motion model.VISUALIZE: Establish a coordinate system with the x-axis horizontal and the y-axis vertical. Define symbols and identify what the problem is trying to find. For a launch at angle, the initial velocitycomponents are vixvocos and viyvosine.==SOLVE: The acceleration is known: ax = 0 anday -g. Thus, the problem becomes one of two-dimensional kinematics. The kinematic equations are=Horizontalxf = X₁ + V₁x AtVfx = Vix constant-VerticalYf = Yi +ViyAt — — 9(At)²,Vfy = Viy-gatAt is the same for the horizontal and vertical components of the motion. Find At from one component, and then use that value for the other component.REVIEW: Check that your result has the correct units and significant figures, is reasonable, and answers the question.ModelStart by making simplifying assumptions: Model the rock as a particle in free fall. You can ignore air resistance because the rock is a relatively heavy object moving relatively slowly. Part AWhich diagram represents an accurate sketch of the rock's trajectory?► View Available Hint(s)Submit✓ CorrectPart BaPrevious AnswersSubmit10CorrectUfAs stated in the strategy, choose a coordinate system where the x axis is horizontal and the y axis is vertical. Note that in the strategy, the y component of the projectile's acceleration, ay, is taken to be negative. This implies that the positive y axis is upward. Use the same convention for your y axis, and take the positive x axis to be to the right.Where you choose your origin doesn't change the answer to the question, but choosing an origin can make a problem easier to solve (even if only a bit). Usually it is nice if the majority of the quantities you are given and the quantity you are trying to solve for take positive values relative to your chosen origin. Given this goal, what location for the origin of the coordinate system would make this problem easiest?Previous AnswersU₂At the peak of the trajectoryAt the point where the rock strikes the groundAt the point where the rock is releasedAt ground level below the point where the rock is launchedO At ground level below the peak of the trajectoryU₂

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Description: Part C: Find the height yi from which the rock was launched. Express your answer in meters to three significant figures. Learning Goal:A rock thrown with speed 8.50 m/s and launch angle 30.0° (above the horizontal)travels a horizontal distance of d =

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Learning Goal: A rock thrown with speed 8.50 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d = 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s² for the free-fall acceleration.

Learning Goal: A rock thrown with speed 8.50 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d = 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s² for the free-fall acceleration.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 4OQ: Entering his dorm room, a student tosses his book bag to the right and upward at an angle of 45 with...

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