Use the data below to answer this question

Question

Original length =20cm
New length =25
Load =50N
Find the extension caused by the 100N load that the elastic is not exceeded
Find the new length when the spring is stretched by the 100N

Answer 1

To find the extension caused by the 100N load, we need to first calculate the spring constant (k) using the original length and load.

First, calculate the spring constant:
k = F / x
k = 50N / 5cm
k = 10 N/cm

Now that we have the spring constant, we can find the extension caused by the 100N load:
F = 100N
x = F / k
x = 100N / 10 N/cm
x = 10 cm

Therefore, the extension caused by the 100N load is 10 cm.

To find the new length when the spring is stretched by the 100N load, we need to add this extension to the original length:
New length = Original length + Extension
New length = 20 cm + 10 cm
New length = 30 cm

Therefore, the new length when the spring is stretched by the 100N load is 30 cm.