Fill in physics blanks!! ?
A rightward force is applied to a 10-kg object to move it across a rough surface at constant velocity. The coefficient of friction between the object and the surface is 0.2. Use the diagram to determine the gravitational force, normal force, applied force, frictional force, and net force. (Neglect air resistance.) Fill in the 5 blanks
- Wayne DeguManLv 72 months agoFavorite Answer
Using net (F) = ma we have:
Force - Friction = ma
Now, friction = µ.R
Also, R = mg => 100 Newtons
Hence, friction = (0.2)10g => 2g
so, Force - 2g = 0....as acceleration is zero
Then, Force = 2g => 20 Newtons
Note: Net force is zero as the pulling force equals the frictional force.
- NCSLv 72 months ago
Solution in image. I used g = 10 m/s/s for nice round numbers.
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