1. How fast must a ball be rolled along 70 cm high table so that when it rolls off the edge it will strike the ground at this same distance from the point directly below the table edge? 2. A ball traveling at 100 cm/s rolls off the edge of level table. If it hits the earth 30 cm away from the point directly below the edge of the table, how high is the table? 3. A rock with speed 20 cm/s rolls off the edge of a table 20 cm high. How long dose it take to drop to the earth? How far horizontally from the table edge the ball strike the earth? 4. The displacement of a particle moving in a straight line is given by x-2t+2t+4 Find the acceleration.

1. How fast must a ball be rolled along 70 cm high table so that when it rolls off the edge it will strike the ground at this same distance from the point directly below the table edge? 2. A ball traveling at 100 cm/s rolls off the edge of level table. If it hits the earth 30 cm away from the point directly below the edge of the table, how high is the table? 3. A rock with speed 20 cm/s rolls off the edge of a table 20 cm high. How long dose it take to drop to the earth? How far horizontally from the table edge the ball strike the earth? 4. The displacement of a particle moving in a straight line is given by x-2t+2t+4 Find the acceleration.

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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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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

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Question

| 299 8
M
K/s
1. How fast must a ball be rolled along 70 cm high table so that
when it rolls off the edge it will strike the ground at this same
distance from the point directly below the table edge?
2. A ball traveling at 100 cm/s rolls off the edge of level table. If it
hits the earth 30 cm away from the point directly below the
edge of the table, how high is the table?
3. A rock with speed 20 cm/s rolls off the edge of a table 20 cm
high. How long dose it take to drop to the earth? How far
horizontally from the table edge the ball strike the earth?
4. The displacement of a particle moving in a straight line is given
by x-2t+2t+4 Find the acceleration.
Karrar Ali Shafiq
تعليقان
تعليق
أعجبني

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