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To calculate the work required to stretch the spring further by another 5 cm, we will use the formula for the work done in stretching a spring:
W = (1/2) k (x2² - x1²)
Where:
W = Work done
k = Spring constant (given as 5 × 10³ N/m)
x1 = Initial displacement (5 cm = 0.05 m)
x2 = Final displacement (Initial displacement + additional displacement = 0.05 m + 0.05 m = 0.10 m)
Step 1: Write the formula
W = (1/2) × k × (x2² - x1²)
Step 2: Substitute the values
W = (1/2) × 5000 × (0.10² - 0.05²)
W = 0.5 × 5000 × (0.01 - 0.0025)
W = 2500 × (0.0075)
Step 3: Calculate
W = 2500 × 0.0075
W = 18.75 N-m
Final Answer: (b) 18.75 N-m
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