jee-main 2003 Q18

jee-main · India Work done and energy Spring compression and elastic potential energy
A spring of spring constant $5 \times 10^{3} \mathrm{~N/m}$ is stretched initially by 5 cm from the unstretched position. Then the work required to stretch it further by another 5 cm is
(1) $12.50 \mathrm{~N-m}$
(2) $18.75 \mathrm{~N-m}$
(3) $25.00 \mathrm{~N-m}$
(4) $6.25 \mathrm{~N-m}$ 
A spring of spring constant $5 \times 10^{3} \mathrm{~N/m}$ is stretched initially by 5 cm from the unstretched position. Then the work required to stretch it further by another 5 cm is\\
(1) $12.50 \mathrm{~N-m}$\\
(2) $18.75 \mathrm{~N-m}$\\
(3) $25.00 \mathrm{~N-m}$\\
(4) $6.25 \mathrm{~N-m}$
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