A block of mass 1kg is dropped on a spring from a height of 20 cm. If the spring compresses by 5 cm, the force constant of the spring is (g = 10 ms^(-1))

A block of mass 1kg is dropped on a spring from a height of 20 cm. If

1.	A block of mass 1kg is dropped on a spring from a height of 20 cm. If the spring compresses by 5 cm, the force constant of the spring is (g = 10 ms^(-1))
Answer» `2000 Nm^(-1)` `1000 Nm^(-1)` `200 Nm^(-1)` `500 Nm^(-1)` ANSWER :A