The "c) percent efficiency" could not be used to find the mechanical advantage of an inclined plane. There are two formulae that could be used to determine the mechanical advantage of an inclined plane which stated as MA = Length/rise and Wout=Win. MA is the mechanical advantage, Wout is the output force, Win is the input force, and "rise" is the height of the inclined plane<span>.</span>
Answer:
Distance s=ut+1/2 at^2
If it’s released then this becomes
s=1/2at^2
s=1/2 *9.81*9
s=44.1 m
Explanation:
<span>Integrate a to get v and use initial data for v to evaluate the constants of integration.
v = [(3/2)t^2 + Ci]i + [2t^2 + Cj]j
When t=0, v = 5i + 2j, hence Ci=5, Cj=2
So v = [(3/2)t^2 + 5]i + [2t^2 + 2]j <==ANS
(b)
Integrate v to get r and use initial data for r to evaluate the constants of integration:
The result is:
r = [0.5t^3 + 5t + 20]i + [(2/3)t^3 + 2t + 40]j <==ANS
Set t=4 in the above expression to evaluate (c)
Convert the result of (c) to polar form to evaluate (d)</span>
F₁ = c / d²
F₂ = c / (3d)²
F₁/F₂ = 3² = 9
F₂ = 1/9 F₁
