I believe yes they do hope this helps
To calculate the acceleration of the truck, we use the equation of motion

Here, v is final velocity of the truck, u is initial velocity of truck, a is acceleration of the truck and t is time taken.
Given, u = 6 m/s, v = 14 m/s and t = 4 s.
Substituting these values in above equation, we get
.
Thus, the truck acceleration is 
Answer/Explanation: well three ways are Direct Strike.
Side Flash.
Conduction.
Answer:
F₀ /k .
Explanation:
Force is variable
F=F₀ 
kinetic energy = work done by force
= ∫ F dx
= ∫F₀
dx
= F₀
/ -k
E = F₀
/ -k
= -F₀ /(k
)
For maximum E ,
should be minimum ,
is minimum for x = 0
maximum value of E = F₀ /k .