Answer:
Work done = 73.575 J
Step-by-step explanation:
Given,
Mass (m) = 5 kg
Height (h) = 1.5 m
Gravity (g) = 9.81 m/s²
Work done = ?
Work done
= mgh
= 5 kg × 9.81 m/s² × 1.5 m
= 73.575 joule (J)
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Hope it helps ⚜
Answer:
i think the answer is either E. or B. i'm not sure if i'm right but if someone can correct me if i'm wrong .
Step-by-step explanation:
Justify means plug answer in and verify
so distribute 8(3-7x)=24-56x
143=7+24-56x
143=31-56x
minus 31 both sides
112=-56x
divide both sides by -56
-2=x
justify
plug it back
143=7+8(3-7x)
143=7+8(3-7(-2))
143=7+8(3-(-14))
143=7+8(3+14)
143=7+8(17)
143=7+136
143=143
true
x=-2
There is so solution to this problem
A= -81 + square root of 113
a<span>≈</span> -70.36985418
