points l Previous Answers Match each of the forces with their corresponding dire

Question

points l Previous Answers Match each of the forces with their corresponding direction opposes the possibility of motion Down Toward the center of the object causing the force when it is stretched and away the center of the object causing the force when it is compressed opposes the motion Toward the center of mass of the object that is causing the force Perpendicular to the surface of contact and pointing from the object experiencing the force and through the object causing the force Toward the center of the object causing the force Show My Work opti Submit Answer Save Progress O Ask me anything Static Friction Tension Elastic Force Kinetic Friction Gravity (always) Normal Force Gravity (from earth near its surface

Explanation / Answer

1.Opposes possiblity of motion---static friction

2.Down ---gravitational force

3.towards and away ---elastic force

4.Opposes motion ---Kinetic friction

5.towards centre of mass --tension

6.perpendicular to the surface ---normal force

7.towards centre of object ---gravity

Next question:-- Initial kinetic energy KEA = 1/2 mv2 = 1/2x10x62 = 180J

                       Final kinetic energy KEB = 1/2 mv2 = 1/2x10x22 = 20J

                       The change in kinetic energy is equl to Work done on the body, KEB - KEA = 20 -180 =- 160J

It is negative.

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