A rocket-powered hockey puck moves on a horizontal frictionless table. The following figure shows graphs of vx and Vy, the x- and y-components of the puck's velocity. The puck starts at the origin. a. In which direction is the puck moving at t=2s? Give your answer as an angle from the x-axis. b. How far from the origin is the puck at t=5s?

A rocket-powered hockey puck moves on a horizontal frictionless table. The following figure shows graphs of vx and Vy, the x- and y-components of the puck's velocity. The puck starts at the origin. a. In which direction is the puck moving at t=2s? Give your answer as an angle from the x-axis. b. How far from the origin is the puck at t=5s?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 7P: 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 18.0 m/s. The cliff is 50.0 m above a flat, horizontal beach as shown in Figure P3.7. (a) What are the coordinates of the initial position of the stone? (b) What are the components of the initial velocity? (c) Write the equations for the x- and y-components of the velocity of the stone with time, (d) Write the equations for the position of the stone with time, using the coordinates in Figure P3.7. (e) How long after being released does the stone strike the beach below the cliff? (f) With what speed and angle of impact does the stone land? Figure P3.7
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1. A golfer hits a golf ball on a flat, horizontal surface with an initial velocity of 67.7 m/s @ 45°. Calculate only (h) and (i): (a) Vox and Voy. (b) The time it will take the ball to reach maximum height. (c) The maximum height the ball will rise to. (d) The total air time of the ball. (e) The range of the ball. (f) The position (x,y) of the ball at t=1.0s. (g) The components of velocity of the ball (Vx, Vy) at 1.0s. (h) The velocity vector of the ball at 1.0s. (i) The velocity vector of the ball just as it hits the ground.
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