question_answer

One end of a block of mass m = 3 kg placed on a horizontal smooth surface is attached with a spring of force constant 100 N/m. Other end of the spring is attached to a wall as shown in figure. Suddenly a constant horizontal force of 10 N starts acting on the block towards right and as a result the block starts moving towards right. Find energy (in J) stored in the spring when the block stops for the first time (initially spring was in natural length).

Answer:

2.00