A 2kg body is dropped from height of lm onto a spring of spring constant 800 N/m as shown in the figure. A firctional force equivalent to 0.4 kg-wt acts on the body. The speed of the body just before striking the spring will be :

A 2kg body is dropped from height of lm onto a spring of spring consta

1.	A 2kg body is dropped from height of lm onto a spring of spring constant 800 N/m as shown in the figure. A firctional force equivalent to 0.4 kg-wt acts on the body. The speed of the body just before striking the spring will be :
Answer» 1 m/s 2 m/s 3 m/s 4 m/s ANSWER :D