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Braking deceleration
(acceleration)

The braking deceleration or the acceleration is the changing of the vehicle speed in a certain unit of time.

v
a =
t
v = a · t
v
t =
a

2 · s
a =
t²

a · t²
s =
2

v²
a =
2 · s

v²
s =
2 · a

v₂ - v₁
a =
t₂ - t ₁

Acceleration at the differential speed:
Deduct the starting speed from the final speed.
Deduct the two speeds from each other.

Example

Var. set:

s = 45 m; t = 3,1 s

Var. asked for:

a in m/s²

Answer:

2 · s
a =

=
t²

2 · 45 m
= 9,365 m/s²
3,1² · s²

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Braking deceleration (acceleration)

va = t

v = a · t

vt = a

2 · sa = t²

a · t²s = 2

v²a = 2 · s

v²s = 2 · a

v2 - v1a = t2 - t 1

Example

Var. set:

Var. asked for:

Answer:

Braking deceleration
(acceleration)

v
a =
t

v
t =
a

2 · s
a =
t²

a · t²
s =
2

v²
a =
2 · s

v²
s =
2 · a

v₂ - v₁
a =
t₂ - t ₁