Answers

2016-06-23T22:05:18+08:00
A=force/mass
7.5m/s^2=12.3 N/mass
mass=12.3N/7.5 m/s^2
mass=12.3kg*m/s over 7.5 m/s^2
cancel m/s choo choo
mass=1.64 kg


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