Traditional Culture Encyclopedia - Traditional festivals - When you slide on the ground, you can clearly see its sliding trace, which is what we often call the brake line. From the length of the brake line, you can know the brake of the car. ...
When you slide on the ground, you can clearly see its sliding trace, which is what we often call the brake line. From the length of the brake line, you can know the brake of the car. ...
Solution: When the braking resistance is 0.6mg, the braking acceleration is -0.6mg/m=-0.6g=-6 m/s? .
End with v? -V0？ =2as, get V0? = end of v? -2as = 0-2 * (6) *12 =144, so v0 =12m/s.
Uniform motion, traction = resistance, resistance during driving: 0. 1mg, power p = Fv = 0.1mg *12 =12m.
What is the quality of the car? You can bring it in.
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