Question
find the acceleration of the stack of books if the stack has a total mass of 1.5 kg
Solution
Data: The information we need to extract from the question
Total Mass, m = 1.5 kilograms,
Forces are: F1 = 3N, F2 = 1N, and F3 = 2N
Formula: The equations we need to use to solve the problem are:
FSame direction = F1 + F2
FOpposite direction = F3
FNet = FSame direction – FOpposite direction
a = FNet / m
To find the acceleration of the stack of books, we need to calculate the net force acting on the stack and then use Newton’s second law of motion. Hence, we will now apply the following formulas above to solve the problem. Thus:
FSame direction = F1 + F2 = 3N + 1N = 4N
FOpposite direction = F3 = 2N
FNet = FSame direction – FOpposite direction = 4N – 2N = 2N
a = FNet / m = 2/1.5 = 1.33 m/s2
Final Answer
Therefore, the acceleration of the stack of books is approximately 1.33 m/s2