Answer:
E = 0.01 J
Step-by-step explanation:
Given that,
The mass of the cart, m = 0.15 kg
The force constant of the spring, k = 3.58 N/m
The amplitude of the oscillations, A = 7.5 cm = 0.075 m
We need to find the total mechanical energy of the system. It can be given by the formula as follows :
![E=(1)/(2)kA^2](https://img.qammunity.org/2022/formulas/physics/college/ax8ntl5qlo8u6tnpo0pcn66579sx5spddp.png)
Put all the values,
![E=(1)/(2)* 3.58* (0.075)^2\\\\=0.01\ J](https://img.qammunity.org/2022/formulas/physics/college/d38vw7n4836qvbnbopjuicq1tyiss3fpa7.png)
So, the value of total mechanical energy is equal to 0.01 J.