The least common multiple of 30 and 13 is 390 !
Answer:
259.6 ft/sec
Step-by-step explanation:
it is a universal standard that acceleration due to gravity is 32ft/sec^2.
Now it can be verified by equation,
V(f) = V(i)+at (1st equation of motion derived by Newton's three laws of motion)
where,
V(f) is final velocity
V(i) is initial velocity
a is acceleration which is constant and have value 32ft/sec^2
t is time which is given as 7.8 seconds
In the given case, initial velocity that is V(i) will be 0ft/sec. Because, on dropping, object will start to move under the influence of gravity from zero speed.
So,
V(f) = 0 +(32) (7.8)
V(f) = 249.6 ft/sec
Now the condition is given that you have to add a constant 10 to the answer.
so, V(f) = 249.6 + 10
V(f) = 259.6 ft/sec
148.5 square yards of floor covering will be needed to cover the floor.
Step-by-step explanation:
Width of floor = 4 feet 6 inches
Length of floor = 8 feet 3 inches
As we know,
1 foot = 12 inches
Therefore,
Width of floor = 4(12) + 6 = 54 inches
Length of floor = 8(12) + 3 = 99 inches
Area of floor = Length * Width

36 Inch = 1 yard
1 inch = 
5346 inches = 
148.5 square yards of floor covering will be needed to cover the floor.
Keywords: conversion, area
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