Studied by 15 people

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1

formula for acceleration

(Final Velocity - Starting Velocity)/ time

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2

formula for speed

speed = distance / time

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3

formula for average speed

Average speed = total distance / total time

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4

distance is a _ quantity, it is always _

scalar, positive

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5

displacement does not depend on _, it is a _ quantity

how to find it using a graph

path, vector

area of velocity - time graph

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6

average speed =

Savg for equal time interval

Savg for equal distance

total distance / total time

S1 + S2 / 2

2 S1 S2 / S1 + S2

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7

uniform motion

equal distance in equal time in one direction

uniform velocity: avg v = instantaneous v

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8

when a = 0

S = vt

uniform motion (constant velocity)

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9

equations of motion

v = u + at

S = ut + (1/2) at^2

v^2 - u^2 = 2aS

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10

motion under gravity: non uniform motion with uniform acceleration

object is dropped from some height

T, vt, vground, v avg

T = sq root (2H / g)

vt = gt, vground = sq root (2gH)

vavg = sq root (gH / 2)

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11

river downstream

meaning, t =

Vman is same as Vriver (direction)

t = S / vm + vr

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12

river upstream

meaning, t =

Vman is opposite to Vriver (direction)

t = S / vm - vr

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17

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18

Important Terms

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19

Acceleration avg

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20

Average Velocity

Only valid when constant Acceleration

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21

Velocity mid

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22

Gallileo’s ratio in 1sec, 2sec and 3 sec

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23

Gallileo’s ratio in 1st, 2nd and 3rd

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24

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Displacement time graph

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27

Motion under gravity

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28

Time of flight

Velocity at ground

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31

distance and displacment?

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32

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