Percent error (theoretical/actual value)?

Question

sort of lost here... I know it's theoretical value - actual / theoretical x 100% but still lost. Any help appreciated

Acceleration measured (m/s2): .025

Acceleration calculated (m/s2): 10

total mass was .400 (kg)

Answer 1

hi

Answer 2

I think you may be off because to calculate percent error you do theoretical-actual divided by actual not theoretical

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