Solve for #3 1)A 50.0 kg mass is pulled along 25.0m on a floor with H=.10, as shown. Find the workforce present.N=mg - FeineN=6o kg(9.8m/s2)) - 80Nsm(30)= 450N Frietionetw=f.edw= (10/450N(25wm )w> (g0N)(25m).cos(ie= |25JF-00 ON30.0External Forcew=td.coseForceFrietiouPorze-1732 .0512)A 2200-kg car accelerates from 10m/s to 30m/s. What is the net work done by all forces that act onthe car?3)A 1800-kg car accelerates over a distance of 120m due to a net force of 4200N. If its initial speed was40km/h, what is its final speed.4)A 25 kg block moving at Vo=28m/s slides on a surface with friction. If the coefficient of kinetic frictionis l=.08 over what distance dose it come to rest.

Mass of the car,m=1800 kg The distance moved by the car , s=120 m The net force on the mass,F=4200 N…

Answered: 3)A 1800-kg car accelerates over a…

3)A 1800-kg car accelerates over a distance of 120m due to a net force of 4200N. If its initial speed was 40km/h, what is its final speed.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 10P: A 5.0-g bullet leaves the muzzle of a rifle with a speed of 320 m/s. What force (assumed constant)...

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Concept explainers

Ising model of Ferromagnets

The Ising model is one of the easiest and most famous theoretical models for ferromagnetism in statistical mechanics. When a group of atomic spins aligns such that their magnetic moments are pointed in the same direction and produce a strong permanent magnetic moment in macroscopic size, the phenomenon is called ferromagnetism. The relative permeability of these magnets is greater than unity and increasing magnetization with the applied external field. Even in the absence of an external magnetic field, these substances retain spontaneous magnetization. An example of ferromagnets is iron.

Question

Solve for #3

1)A 50.0 kg mass is pulled along 25.0m on a floor with H=.10, as shown. Find the work
force present.
N=mg - Feine
N=6o kg(9.8m/s2)) - 80Nsm(30)
= 450N Frietionet
w=f.ed
w= (10/450N(25wm )w> (g0N)(25m).cos(ie
= |25J
F-00 ON
30.0
External Force
w=td.cose
Force
Frietiou
Porze
-1732 .051
2)A 2200-kg car accelerates from 10m/s to 30m/s. What is the net work done by all forces that act on
the car?
3)A 1800-kg car accelerates over a distance of 120m due to a net force of 4200N. If its initial speed was
40km/h, what is its final speed.
4)A 25 kg block moving at Vo=28m/s slides on a surface with friction. If the coefficient of kinetic friction
is l=.08 over what distance dose it come to rest.

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