lizzydeej
lizzydeej
07-04-2018
Physics
contestada
I need help on this
Respuesta :
Trishagahs
Trishagahs
07-04-2018
speed (or velocity) = distance / time
distance (or displacement) = 30.0 – 10.0
= 20.0 m
time = 160.0 – 80.0 = 80.0 s
average velocity = 20.0 / 80.0 = 0.25 m/s
but because the line has a negative gradient the answer is -0.25 m/s which is B
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