A dynamite blast at a quarry launches a rock straight upward, and 1.9 s later it is rising at a rate of 19 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b) 4.6 s after launch. (a)Number 37.6 Units m/s (b)Number i -7.48 Units m/s

A dynamite blast at a quarry launches a rock straight upward, and 1.9 s later it is rising at a rate of 19 m/s. Assuming air resistance has no effect on the rock, calculate its speed (a) at launch and (b) 4.6 s after launch. (a)Number 37.6 Units m/s (b)Number i -7.48 Units m/s

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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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

A dynamite blast at a quarry launches a rock straight upward, and 1.9 s later it is rising at a rate of 19 m/s. Assuming air resistance has
no effect on the rock, calculate its speed (a) at launch and (b) 4.6 s after launch.
(a)Number
37.6
Units
m/s
(b)Number i
-7.48
Units
m/s
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