please please help with questions 77,78,79 and 80 77. A ball rolls down'a curved ramp, as shown in theWhich dotted line best represents the path of78. Above a flat horizontal plane, arrow A is shotper second, as shown in the following diagram.horizontally from a bow at a speed of 20 metersfollowing diagram.the ball after leaving the ramp?A second arrow B is dropped from the sameheight and at the same instant as A is firedB.HorizontalplaneCompare the amount of time A takes to strikethe plane to the amount of time B takes tostrike the plane. [Neglect friction.]79. A rock is thrown horizontally from the top of acliff at 12 meters per second. Calculate the timerequired for the rock to fall 45 meters vertically-80. A ball is thrown horizontally at a speed of24 meters per second from the top of a Cim.If the ball hits the ground 4.0 seconds later,approximately how high is the cliff?(1) 6.0 m (2) 39 m(3) 78 m(4) 96 m

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Answered: 77. A ball rolls down'a curved ramp, as…

77. A ball rolls down'a curved ramp, as shown in the Which dotted line best represents the path of following diagram. the ball after leaving the ramp?

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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