A ball is thrown directly downward with aninitial speed of 6.77 m/s from a height of47.2 m.After what interval does the ball strikethe ground? The acceleration of gravity is9.8 m/s² .Answer in units of s.005 10.0 pointsA car travels in a straight line for 5 h at aconstant speed of 53 km/h.What is its acceleration?Answer in units of m/s².006 (part 1 of 2) 10.0 pointsA small fish is dropped by a pelican that isrising steadily at 0.44 m/s. (partpõintsHow far below the pelican is the fish after the4.3 s?Answer in units of m.008 (part 1 of 4) 10.0 pointsA mountain climber stands at the top of a57.3 m cliff hanging over a calm pool of water.The climber throws two stones vertically 1.8s apart and observes that they cause a singlesplash when they hit the water. The firststone has an initial velocity of +2.2 m/s.Find the velocity of the first stone at theinstant both stones hit the water. The accel-eration of gravity is 9.81 m/s².Answer in units of m/s.009 (part 2 of 4) 10.0 pointsHow long after the release of the first stonewill the two stones hit the water?Answer in units of s.010 (part 3 of 4) 10.0 pointsWhat is the initial velocity of the secondstone?Answer in units of m/s.011 (part 4 of 4) 10.0 pointsFind the velocity of the second stone at theinstant both stones hit the water.Answer in units of m/s.

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A ball is thrown directly downward with an initial speed of 6.77 m/s from a height of 47.2 m. After what interval does the ball strike the ground? The acceleration of gravity is 9.8 m/s² . Answer in units of s.

A ball is thrown directly downward with an initial speed of 6.77 m/s from a height of 47.2 m. After what interval does the ball strike the ground? The acceleration of gravity is 9.8 m/s² . Answer in units of s.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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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.

Topic Video

Question

A ball is thrown directly downward with an
initial speed of 6.77 m/s from a height of
47.2 m.
After what interval does the ball strike
the ground? The acceleration of gravity is
9.8 m/s² .
Answer in units of s.
005 10.0 points
A car travels in a straight line for 5 h at a
constant speed of 53 km/h.
What is its acceleration?
Answer in units of m/s².
006 (part 1 of 2) 10.0 points
A small fish is dropped by a pelican that is
rising steadily at 0.44 m/s.

(part
põints
How far below the pelican is the fish after the
4.3 s?
Answer in units of m.
008 (part 1 of 4) 10.0 points
A mountain climber stands at the top of a
57.3 m cliff hanging over a calm pool of water.
The climber throws two stones vertically 1.8
s apart and observes that they cause a single
splash when they hit the water. The first
stone has an initial velocity of +2.2 m/s.
Find the velocity of the first stone at the
instant both stones hit the water. The accel-
eration of gravity is 9.81 m/s².
Answer in units of m/s.
009 (part 2 of 4) 10.0 points
How long after the release of the first stone
will the two stones hit the water?
Answer in units of s.
010 (part 3 of 4) 10.0 points
What is the initial velocity of the second
stone?
Answer in units of m/s.
011 (part 4 of 4) 10.0 points
Find the velocity of the second stone at the
instant both stones hit the water.
Answer in units of m/s.

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