Question

An object with a mass=2kg is attached to a string. The other end of the string is attached to a spring, as shown in the diagram. The spring is stretched until it comes to rest.(g-10 m/s2)

a) How much vertically downward force does the weight apply to the spring?
b) How much vertically upward force does the spring apply to the weight?​

Answer 1

Answer: a) 20N b) -20N

Explanation: a) F=mg

g=10m/s2

= 2*10

= 20N

b) F=mg

g=-10m/s2

=2*(-10)

= -20N