the automobile engine is developing the 70w power at 4000rpm. if the gear ratio is 3.9:1 , determine the output torque of the gear box
Answers
Explanation:
Correct question :-
A relation between x and y such that the pt. (x,y) is equidistant from the points (7,1) and (3,5) :-
a) x+y = 2
b) x-y = 2
c) x+y = 3
Solution :-
If point (x ,y) is equidistant from the points (7,1) and (3,5). So (x,y) is midpoint of line joining (7,1) and (3,5).
Co-ordinates of midpoint of line joining (7,1) and (3,5) can be written as :-
\rm \implies \bigg( \dfrac{7 + 3}{2} \: , \: \dfrac{1 + 5}{2} \bigg)⟹(
2
7+3
,
2
1+5
)
\rm \implies \bigg( \dfrac{10}{2} \: , \: \dfrac{6}{2} \bigg)⟹(
2
10
,
2
6
)
\rm \implies \bigg( 5 \: , \:3\bigg)⟹(5,3)
\therefore \rm(x,y) = (5,3)∴(x,y)=(5,3)
=> x = 5
=> y = 3
Now , x - y = 5-3 = 2
Therefore option (b) is correct.
Answer :
b) x-y = 2
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Learn more :
Co-ordinates of midpoint of line joining (a,b) and (c,d) is given as :-
\rm \implies \bigg( \dfrac{a + c}{2} \: , \: \dfrac{b + d}{2} \bigg)⟹(
2
a+c
,
2
b+d