Bodies weighing 3 kg are lifted vertically upward. The modulus of the resultant of all forces is 12 N.
| August 4, 2021 | education
Bodies weighing 3 kg are lifted vertically upward. The modulus of the resultant of all forces is 12 N. At the same time, the body moves.
To find the acceleration with which a given body is lifted, we apply Newton’s second law: F = m * a, whence we express: a = F / m.
Values of variables: F – modulus of the resultant of all forces (F = 12 N); m is the mass of the body being lifted (m = 3 kg).
Calculation: a = F / m = 12/3 = 4 m / s2.
Answer: The constant acceleration when lifting a given body was 4 m / s2.
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