Current location - Training Enrollment Network - Mathematics courses - Physics in the second day of junior high school (it seems to be similar to math problems), such as. I don't know why, I didn't mention it twice. . . .
Physics in the second day of junior high school (it seems to be similar to math problems), such as. I don't know why, I didn't mention it twice. . . .
Physics is different from mathematics, emphasizing physical meaning. The format of solving problems is different, unlike you who only have algebraic expressions and no formulas.

To solve physical problems, we must first write formulas, deform them, bring in data and get results.

Let the car leave the valley as s.

t=s/v 4s=(s+s+20m/sx4s)/340m/s

The solution is s = 640 m.