Question

The work done by kinetic frictional force is always negative. Why? 1. Because the frictional force is always opposite to the direction of velocity 2 Because the frictional force is always opposite to the direction of duplacement 3. Because the frictional force is always opposite to the direction of acceleration 4. Because the frictional force is always opposite to the direction of applied forces 5 Bedi a and b٠

Name: the work done by kinetic frictional force is always negative why 1 because the frictional force is always opposite to the direction of velocity 2 because the frictional force is always oppos 31487
Uploaded: 2022-01-16T17:43:49-08:00
Duration: 1 min 3 s
Channel: Narayan Hari
Description: the work done by kinetic frictional force is always negative why 1 because the frictional force is always opposite to the direction of velocity 2 because the frictional force is always oppos 31487

          The work done by kinetic frictional force is always negative. Why?
1. Because the frictional force is always opposite to the direction of velocity
2 Because the frictional force is always opposite to the direction of duplacement
3. Because the frictional force is always opposite to the direction of acceleration
4. Because the frictional force is always opposite to the direction of applied forces 5 Bedi a and b٠

Added by Patrick S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Narayan Hari

01/16/2022

Step 1

Work done by a force is given by the product of the force and the displacement in the direction of the force, multiplied by the cosine of the angle between the force and the displacement. Mathematically, it is represented as W = F * d * cos(θ). Show more…

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The work done by kinetic frictional force is always negative. Why? 1. Because the frictional force is always opposite to the direction of velocity 2 Because the frictional force is always opposite to the direction of duplacement 3. Because the frictional force is always opposite to the direction of acceleration 4. Because the frictional force is always opposite to the direction of applied forces 5 Bedi a and b٠