please solve these A 2.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis isapplied to the block. The force is given by F (x) = (4.6 – x² )i N, where x is in meters and the initial position of the block is x =0. (a) What is the kinetic energy of the block as it passes through x = 2.4 m? (b) What is the maximum kinetic energy of the blockbetween x = 0 and x = 2.4 m?%3D(a) NumberiUnits(b) NumberiUnits The figure gives the acceleration of a 6.0 kg particle as an applied force moves it from rest along an x axis from x = 0 to x = 9.0 m. Thescale of the figure's vertical axis is set by ag = 10.0 m/s?. How much work has the force done on the particle when the particle reaches(a) x = 4.0 m, (b) x = 7.0 m, and (c) x = 9.0 m? What is the particle's speed and direction (give positive answer if the particle movesalong x axis in positive direction and negative otherwise) of travel when it reaches (d) x = 4.0 m, (e) x = 7.0 m, and (f) x = 9.0 m?x (m)4 16-a,(a) NumberiUnits(b) NumberiUnits(c) NumberiUnits(d) NumberiUnits(e) NumberiUnits(f) NumberiUnits>>>>>

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A 2.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. The force is given by F (x) = (4.6 – x )î N , where x is in meters and the initial position of the block is x 0. (a) What is the kinetic energy of the block as it passes through x = 2.4 m? (b) What is the maximum kinetic energy of the block between x = 0 and x = 2.4 m? (a) Number i Units (b) Number i Units

A 2.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. The force is given by F (x) = (4.6 – x )î N , where x is in meters and the initial position of the block is x 0. (a) What is the kinetic energy of the block as it passes through x = 2.4 m? (b) What is the maximum kinetic energy of the block between x = 0 and x = 2.4 m? (a) Number i Units (b) Number i Units

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section10.1: Work And Energy

Problem 7PP

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Scalars and Vectors

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Question

please solve these

A 2.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is
applied to the block. The force is given by F (x) = (4.6 – x² )i N, where x is in meters and the initial position of the block is x =
0. (a) What is the kinetic energy of the block as it passes through x = 2.4 m? (b) What is the maximum kinetic energy of the block
between x = 0 and x = 2.4 m?
%3D
(a) Number
i
Units
(b) Number
i
Units

The figure gives the acceleration of a 6.0 kg particle as an applied force moves it from rest along an x axis from x = 0 to x = 9.0 m. The
scale of the figure's vertical axis is set by ag = 10.0 m/s?. How much work has the force done on the particle when the particle reaches
(a) x = 4.0 m, (b) x = 7.0 m, and (c) x = 9.0 m? What is the particle's speed and direction (give positive answer if the particle moves
along x axis in positive direction and negative otherwise) of travel when it reaches (d) x = 4.0 m, (e) x = 7.0 m, and (f) x = 9.0 m?
x (m)
4 16
-a,
(a) Number
i
Units
(b) Number
i
Units
(c) Number
i
Units
(d) Number
i
Units
(e) Number
i
Units
(f) Number
i
Units
>
>
>
>
>

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