Question
A particle of mass 0.3 kg is subjected to a force F=−kx with k=15 N/m. What will be its initial acceleration if it is released from a point 20 cm away from the origin?
-
3 m/s2
-
15 m/s2
-
5 m/s2
-
10 m/s2
Solution
D.
10 m/s2
a = kx/m =10m /s2
