Three separate ideal springs are compressed on a horizontal frictionless surface

PHYSICS · Single correct · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Three separate ideal springs are compressed on a horizontal frictionless surface. • Spring P:

k = 200\,\text{N/m}

and

\Delta x = 0.10\,\text{m}

• Spring Q:

k = 100\,\text{N/m}

and

\Delta x = 0.15\,\text{m}

• Spring R:

k = 300\,\text{N/m}

and

\Delta x = 0.08\,\text{m}

Rank the magnitudes of the elastic potential energies (

U_P, U_Q, U_R

) stored in the springs from greatest to least. (a)

U_R > U_P > U_Q

(b)

U_Q > U_P > U_R

(c)

U_Q > U_R > U_P

(d)

U_P > U_R > U_Q