or s

SUVAT Equations of motion

Suvat equations

a = ( v - u ) t s = ( u + v ) t 2

s = u t + 1 a t2

2

v2 = u2 + 2 a s

or s

SUVAT Equations of motion

Suvat equations

a = ( v - u ) t s = ( u + v ) t 2

s = u t + 1 a t2

2

v2 = u2 + 2 a s

or s

SUVAT Equations of motion

Suvat equations

a = ( v - u ) t s = ( u + v ) t 2

s = u t + 1 a t2

2

v2 = u2 + 2 a s

or s

SUVAT Equations of motion

Suvat equations

a = ( v - u ) t s = ( u + v ) t 2

s = u t + 1 a t2

2

v2 = u2 + 2 a s

or s

SUVAT Equations of motion

Suvat equations

a = ( v - u ) t s = ( u + v ) t 2

s = u t + 1 a t2

2

v2 = u2 + 2 a s

USING THE EQUATIONS OF MOTION

atuv .1asuv 2.2 22 2

2

1.3 atuts

tvus 2

1.4

1. Write down the symbols of the quantities that you know

2. Write down the symbol of the quantity that you require

3. Select the equation that contains all of the symbols

in 1. and 2. above

e.g.

A stone is released from a height of 20 m above the ground. Neglecting air resistance and using the acceleration due to gravity as 9.81 ms-2, find the velocity with which the stone will hit the ground .

This must be equation 2 as it is the only one with “v”, “u”, “a” and “s” in it

v2 = u2 + 2as

v2 = 02 + 2 x 9.81 x 20

v = 392 = 19.8 m s-1

u = 0 from rest

s = 20 m

a = 9.81 ms-2

v = ?