A spring of force constant 800 N/M has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is _______.
A. 163
B. 8J
C. 32J
D. 24J
Answer:B
A spring of force constant 800 N/M has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is _______.
A. 163 B. 8J C. 32J D. 24J