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Let f (x) be a continuous function and prove that x f (T) (x-t) DT on ∫ lower 0 = ∫ lower 0 and upper x (∫ lower 0 and upper t f (U) Du) DT
See the picture for the answer:
Speed is a description of the motion of an object______ And sports_____ It can also be said to describe objects______ Change speed and_______ Direction of change
Velocity displacement in fast and slow direction
Is there a concept of deceleration in physics?
There is no concept of deceleration
But there is the concept that acceleration is negative
When the direction of acceleration is opposite to the direction of velocity, it is deceleration
What is the meaning and significance of velocity in physics
Speed is the distance divided by time, speed is the displacement divided by time, displacement is the straight-line distance from the starting point to the end point, and distance is the moving distance [it can be a straight line or a curve]
The speed of the car is 10m · s ˉ 1 physical meaning
The physical meaning of the speed of automobile movement is 10m · s ^ - 1:
The speed of automobile movement is 10m · s ^ - 1, which can also be written as the speed of automobile movement is 10m / s, that is, the displacement of automobile per second is 10m
Explanation: simply put, in physics, the displacement per unit time is the velocity
1. The definition formula of acceleration is a = ()
A = derivative of the velocity V of the object with respect to time t, that is, the second derivative of the displacement s with respect to time t
a=v' (t) =s''(t)
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