Exercise 1: Tension of a spring An elastic spring (S) with an initial length of 15 cm extended by 2 cm when pulled by force of intensity F-5N. A. Calculate the stiffness constant of this spring. B. A body (B), placed on a smooth and inclined CD surface, is suspended from the free end of the spring (S) as shown in the figure. Fig-1- D 1. Name and represent without scale the external forces exerted on 2. body B. Classify these forces into contact forces and distance forces. 3. The spring S is extended by 4cm. i. Calculate the tension of this spring. ii. Deduce the value of the force exerted by B on the spring S. Fig-1-

Exercise 1: Tension of a spring An elastic spring (S) with an initial length of 15 cm extended by 2 cm when pulled by force of intensity F-5N. A. Calculate the stiffness constant of this spring. B. A body (B), placed on a smooth and inclined CD surface, is suspended from the free end of the spring (S) as shown in the figure. Fig-1- D 1. Name and represent without scale the external forces exerted on 2. body B. Classify these forces into contact forces and distance forces. 3. The spring S is extended by 4cm. i. Calculate the tension of this spring. ii. Deduce the value of the force exerted by B on the spring S. Fig-1-