Science-8G As shown in Figure 1 below, one end of a spring is attached to a platfom on a smoothhorizontal surface, and the other end is fixed in place. A person is standing on the platfom.The platfom is pushed to the left, compressing the spring to less than its natural length, andis gently released. The platform begins undergoing simple harmonic motion with a periodof T. Let us denote the displacement of the platform from its position when the spring isat its natural length as I, where its positive direction is indicated by the anow in Figure 1(pointing to the right). The displacement r changes with time t as shown in Figure 2.3TPositive directionFigure 1Figure 2Q7 How does the inertial force f experienced by the person standing firmly in place on theplatfom change with time t? From 0-O below choose the graph that best represents thischange, where the positive direction of f is the same direction as the anow in Figure 1 (tothe right).7373737 D As shown in the figure below, a small ball (mass: 0.20 kg) is dropped fiom a height of 2.5mabove a floor, with an initial velocity of zero. Upon colliding with the floor, the ball bouncesvertically upward. The coefficient of restitution between the ball and the floor is 0.50.Assume that g = 9.8 m/s.2.5 mfloorQ4 What is the magnitude of the impulse applied to the ball by the floor in the time fromimmediately before collision to immediately after collision? From 0-0 below choose the4 kg-m/sbest answer.O 0.702 1.4(3.2.1@ 2.8

Given 4) The mass of the object m = 0.2 kg The height of the object is h = 2.5 m The initial…

As shown in Figure 1 below, one end of a spring is attached to a platfor horizontal surface, and the other end is fixed in place. A person is standinge The platfom is pushed to the left, compressing the spring to less than its na is gently released. The platform begins undergoing simple harmonic motic ofT Let us denote the displacament of the platform from its position wh Irnor the platfom from its

As shown in Figure 1 below, one end of a spring is attached to a platfor horizontal surface, and the other end is fixed in place. A person is standinge The platfom is pushed to the left, compressing the spring to less than its na is gently released. The platform begins undergoing simple harmonic motic ofT Let us denote the displacament of the platform from its position wh Irnor the platfom from its

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

Wave Motion

A wave motion is defined as the propagation of disturbances or transfer of energy and momentum from the state of rest or equilibrium to another point in a medium without any actual transfer of matter between them. In a simple explanation, it is the propagation of energy through a medium that is produced due to the repeated vibrations of the particles. Common things we see day to day like waves on water oscillation of a pendulum or bell, light wave, and all the subatomic particles exhibiting wavelike properties. The propagation of waves depends on the medium and their properties. The wave function is the disturbance that produces waves as a function of time. This disturbance oscillates periodically with a fixed frequency and wavelength. There are linear wave motion and non-linear wave motion based on their propagation, motion, and time period where linear wave motion is like sinusoidal waves and non-linear wave motion like a wave motion that gets interrupted in the middle of their propagation.

Question

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Science-8
G As shown in Figure 1 below, one end of a spring is attached to a platfom on a smooth
horizontal surface, and the other end is fixed in place. A person is standing on the platfom.
The platfom is pushed to the left, compressing the spring to less than its natural length, and
is gently released. The platform begins undergoing simple harmonic motion with a period
of T. Let us denote the displacement of the platform from its position when the spring is
at its natural length as I, where its positive direction is indicated by the anow in Figure 1
(pointing to the right). The displacement r changes with time t as shown in Figure 2.
3T
Positive direction
Figure 1
Figure 2
Q7 How does the inertial force f experienced by the person standing firmly in place on the
platfom change with time t? From 0-O below choose the graph that best represents this
change, where the positive direction of f is the same direction as the anow in Figure 1 (to
the right).
7
37
37
37

D As shown in the figure below, a small ball (mass: 0.20 kg) is dropped fiom a height of 2.5m
above a floor, with an initial velocity of zero. Upon colliding with the floor, the ball bounces
vertically upward. The coefficient of restitution between the ball and the floor is 0.50.
Assume that g = 9.8 m/s.
2.5 m
floor
Q4 What is the magnitude of the impulse applied to the ball by the floor in the time from
immediately before collision to immediately after collision? From 0-0 below choose the
4 kg-m/s
best answer.
O 0.70
2 1.4
(3.
2.1
@ 2.8

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