(a)A rock is launched from the ground into the air. After 3 seconds the rock is observed to have a speed of 24.0 m/s at an angle +18.00 below horizontal. Neglecting air resistance, with what velocity was the rock launched?
(a)A rock is launched from the ground into the air. After 3 seconds the rock is observed to have a speed of 24.0 m/s at an angle +18.00 below horizontal. Neglecting air resistance, with what velocity was the rock launched?
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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Transcribed Image Text:(a)A rock is launched from the ground into the air. After 3 seconds the rock is observed to have a speed of
24.0 m/s at an angle +18.00 below horizontal. Neglecting air resistance, with what velocity was the rock
launched?
(b)A tourist drags his suitcase (Weight 220N) a distance of 250m at a constant velocity to catch his flight. He
exerts 60N at an angle 60 degrees above the horizontal.
Find the coefficient of kinetic friction between surfaces.
(a) and (b) not related
Transcribed Image Text:Constants
Universal gas constant= 8.314 J/mol.K
Universal gravitational constant= 6.67 x 10-11 Nm2/kg-
Specific heat of monoatomic gas at constant volume= 3R/2
Specific heat of monoatomic gas at constant pressure= SR/2
Acceleration ghme to gravity near the surface of the earth = 9.8 m/s-
Moment of inertia about center of mass of uniform rod with mass M and L =ML4/12
Moment of inertia about and axis through center of uniform circular disk =MR- /2
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