Moderate -0.8 This is a direct application of the elastic potential energy formula EPE = λx²/(2l), requiring only substitution of given values (λ=55N, x=0.08m, l=0.4m) with no problem-solving or conceptual challenge. Being multiple choice with the answer provided makes it easier than average, though it's Further Maths content.
1 A spring has natural length 0.4 metres and modulus of elasticity 55 N
Calculate the elastic potential energy stored in the spring when the extension of the spring is 0.08 metres.
Circle your answer.
\(0.176 \mathrm {~J} \quad 0.44 \mathrm {~J} \quad 0.88 \mathrm {~J} \quad 1.76 \mathrm {~J}\)
1 A spring has natural length 0.4 metres and modulus of elasticity 55 N\\
Calculate the elastic potential energy stored in the spring when the extension of the spring is 0.08 metres.
Circle your answer.\\
$0.176 \mathrm {~J} \quad 0.44 \mathrm {~J} \quad 0.88 \mathrm {~J} \quad 1.76 \mathrm {~J}$
\hfill \mbox{\textit{AQA Further Paper 3 Mechanics 2019 Q1 [1]}}