Q1. A rubber band has a spring constant of 68 N per metre, calculate the force which needs to be applied to extend this rubber band from its rest length of 50 cm to a new length of 75 cm.


Q2. A spring is compressed from its rest position of 16 cm, down to 12 cm when a force of 3.2 N is applied to it. From this information calculate the spring constant "k"


Q3. A spring with a spring constant "k" of 136 N per metre is compressed to 5cm by the application of a force of 34 N. What was the original length, in cm of the spring?



Go To >> Solutions <<

Back To >> Forces and Elasticity (Hooke's Law) <<

Back To >> Limit of Proportionality <<