(a)[2]
Determine the value of the spring constant $k$ for the spring.
(b)[3]
Determine the elastic potential energy stored in the spring when the applied force $F$ is $15\,\text{N}$.
Physics 9702 · AS & A Level · Elastic and plastic behaviour
Elastic and plastic behaviour — practice question
One end of a spring hangs from a fixed support, and a vertical force is applied to the opposite end, as shown in Fig. 4.1. Fig. 4.2 shows how the applied force $F$ varies with the spring length $L$.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$k = F/\Delta L$ or the graph gradient, for example $30 / (0.60 - 0.20)$” …
- Full mark scheme, point by point
- Step-by-step worked solution
- Write your answer & get it marked instantly by AI