A nurse is pushing a medical cart that has a mass of 80 kg down a hallway. Two forces are acting on the cart: one is pushing it forward with a force of 60 N, and the other is pushing it backward with a force of 40 N. What is the magnitude of the cart's acceleration?
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✓ Correct answer: C. 0.25 m/sec^2Answer: 0.25 m/sec^2 To find the cart's acceleration, start by calculating the net force acting on it. Net force = Forward force - Backward force Net force = 60 N - 40 N Net force = 20 N Next, use Newton's second law equation to determine the acceleration: $$\text{Force} = \text{mass} \times \text{acceleration}$$ 20 N = 80 kg \(\times\) Acceleration Acceleration = $$\frac{20}{80}$$ m/sec^2 Acceleration = 0.25 m/sec^2
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