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A ball with mass 0.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 70 m high. Assume there is a force due to v air resistance of magnitude directed opposite to the velocity, where 30 the velocity v is measured in m/s. NOTE: Use g-9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds

A ball with mass 0.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 70 m high. Assume there is a force due to v air resistance of magnitude directed opposite to the velocity, where 30 the velocity v is measured in m/s. NOTE: Use g-9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds

College Physics
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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A ball with mass 0.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 70 m high. Assume there is a force due to air resistance of magnitude directed opposite to the velocity, where |v| 30 the velocity v is measured in m/s. NOTE: Use g=9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds
Transcribed Image Text:A ball with mass 0.8 kg is thrown upward with initial velocity 20 m/s from the roof of a building 70 m high. Assume there is a force due to air resistance of magnitude directed opposite to the velocity, where |v| 30 the velocity v is measured in m/s. NOTE: Use g=9.8 m/s² as the acceleration due to gravity. Round your answers to 2 decimal places. a) Find the maximum height above the ground that the ball reaches. Height: m b) Find the time that the ball hits the ground. Time: seconds
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