Find the cost of excavating a space 84 ft long, 42 ft wide, and 9 ft deep at a cost of $39/yd3. (simplify your answer completely
1 answer:
The cost of excavating a space of 84 ft long, 42 ft wide, and 9 ft deep is $45864
Information about the problem:
- Space long= 84 ft
- Space wide= 42 ft
- Space deep= 9 ft
- Cost by yard3 = $39/yd3
- Total cost= ?
To solve this problem, we have to state the equation using the information of the problem:
Calculating the volume of the total space:
space volume = space long * space wide * space deep
space volume = 84 ft * 42 ft * 9 ft
space volume = 31752 ft3
By converting the volume from ft3 to yd3, we have:
31752 ft3 * (0,037037 yd3 / 1 ft3) = 1176 yd3
Calculating the cost of excavating the volume space:
Total cost = space volume * cost by yard3
Total cost = 1176 yd3 * $39/yd3
Total cost = $45864
<h3>What is volume?</h3>It is the space occupied by a body, it is calculated by multiplying its dimensions, for example: length, height and width.
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Answer:
4.73 m/s
Explanation:
R=1.84 m
H=0.251 m
∅=38.3°
For Horizontal Motion
aₓ=0 uₓ=ucos∅
x=uₓt+
R=ucos∅*t+0
1.84=ucos(38.3)*t
t=
For Vertical Motion
Y=Uy*t+
By putting value
0.251=usin∅()-(
)
0.251=sin(38.3)()-(
)
0.251=1.452-
u²=22.41
u=4.73 m/s