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Tyler Carmichael
Lv 4
Quick Fnet question.?
I am having a problem find the mass of an object from this question : A force of 350 N is applied for 8.0s when slowing an object from 20m/s to 10 m/s. What is the mass of the object?
Acceleration was easy Vf-Vi/t which came to be -1.25m/s^2, what do I do next?
1 Answer
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- FiremanLv 78 years agoFavorite Answer
By v = u + at
=>10 = 20 + a x 8
=>a = -1.25 m/s^2 {-ve just indicating that is is retardation}
BY F = ma
=>350 = m x 1.25
=>m = 280 kg
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