An elastic spring of length 20cm stretches by 7mm under a load of 50 neuton.calculate the strain in the string
To calculate the strain in the string, you need to know the change in length and the original length of the string. Here's how you can calculate it step by step:
Step 1: Convert the given values to meters for consistency.
Original length of the spring = 20 cm = 0.20 m
Change in length of the spring = 7 mm = 0.007 m
Step 2: Calculate the strain using the formula for strain:
Strain = Change in length / Original length
Strain = 0.007 m / 0.20 m
Step 3: Calculate the strain:
Strain = 0.035
Therefore, the strain in the string is 0.035.
To calculate the strain in the string, we can use the formula:
Strain = (Change in length) / (Original length)
Given:
Original length = 20 cm = 0.2 m
Change in length = 7 mm = 0.007 m
Strain = (0.007 m) / (0.2 m)
≈ 0.035
Therefore, the strain in the string is approximately 0.035.
strain = ∆L/L
so plug in your numbers. The force doesn't really matter.