55.40
what type of relationship does this graph show?
mass vs. acceleration
an inverse relationship
a positive relationship
a direct relationship
an independent relationship
o
acceleration (m/s)
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
mass (kg)
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they should be similar or the same

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me