Aload of 45 n attached to a spring that is hanging vertically stretches the spring 0.14 m. what is the spring constant?

Spring constant, k = 321.42 N/m

Explanation:

Force acting on spring, F = 45 N

Displacement caused due to stretching, x = 0.14 m

Using Hooke's law :

Where

k is the spring constant

k = 321.42 N/m

Hence, this is the required solution.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

it would be c. predictability