Question

the movement of force of 50 N about a fixed point O is 0.5 Nm. calculate the distance of point O from the line of action.​

Answer 1

Answer:

Let the other two point be A(−2,5) and B(2,−3)

So by distance formula we have,

Distance between two points =

(x

2

−x

1

)

2

+(y

2

−y

1

)

2

Then,

PA=PB

PA

2

=PB

2

⇒(a+2)

2

+(0−5)

2

=(a−2)

2

+(0+3)

2

⇒a

2

+4+4a+25=a

2

+4−4a+9

⇒4a+29=−4a+13

⇒ 8a=−16⇒a=−2

∴ The required point isP(−2,0)