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According to Newton's Second Law of Motion, the force acting on an object varies directly ...HELP!!!?
According to Newton's Second Law of Motion, the force acting on an object varies directly with the object's acceleration. Suppose that a force of 56 N results in an acceleration of 7m/s^2 . If the force is changed to 72 N , what will the object's acceleration become?
_______________________M/S^2
2 Answers
- TompLv 77 years ago
Applying the formula
F = Ma
where F = force (Newtons); M = mass (kg); a = acceleration (m/s²)
(I've capitalised M for mass to avoid confusion with m for metres)
We know that
56 = 7M ⇒ M = 8kg
If the mass is constant (as I assume it is), then
72 = 8a ⇒ a = 9 m/s²
- trueproberLv 77 years ago
Hi friend, you have already pointed out that force is proportional to acceleration as mass is constant.
So a2 / a1 = F2 / F1
Hence a2 = a1 * (F2 / F1)
a1 = 7 m/s^2, F2 = 72 N, F1 = 56 N. Hope you would do the rest of the work
