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p10 (weight term velocity (weight = mass x gravity, earth = 9.8n of grav…
p10
weight term velocity
weight = mass x gravity
earth = 9.8n of grav theefore 9.8x10kg e.g would give you the weight
mass of an object depends what is inside that object
how to measure newtons use a newton meature measurement = N
gravitationel field strengh is measured in newtons per kg
constant vleocity when someting not accelrating
eqautions
force x spring constant
p = mxv
f = mxa
w = mxg
v
2 = u
2+2as
f= kxe
speed accelaration
speed = distance div time
newtons second law acceleration of an object is
proportinal to the resultant force on an object
inversely proportion to the mass of an object
for an object to move their needs to be a resultant force
stopping distance
thinking distance
braking distance
stopping distance = thinking distance + breaking distance
if you have resultant force you will go forward
if an object does not have a resultant force it will go at a constant speed
hookes law elacity etc