2 years ago

Friction can be reduced by using ___________.

2 answers:

7 0

Answer: Using lubricants such as oil or grease can reduce the friction between the surfaces.

Explanation: When objects are rolled over the surface, the friction between the rolled object and surface can be reduced by using ball bearings.

allsm [11]2 years ago

6 0

Answer:

Make the surfaces little more smoother. ...

Lubrication is another way to make a surface smoother. ...

Make the object more streamlined. ...

Reduce the Normal force acting between the surfaces in contact. ...

Reduce the contact between the surfaces, so that less number of bonds will be formed.

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We know that drag force on the car given as

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$\dfrac{F_D_1}{F_D_2}=\dfrac{v_1^2}{v_2^2}$

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Percentage Change in the drag force

$\Delta F=\dfrac{F_D_2-F_D_1}{F_D_1}\times 100$

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Explanation:

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