Home
Class 11
MATHS
If the radii of the circle (x-1)^2+(y-2)...

If the radii of the circle `(x-1)^2+(y-2)^2=1` and `(x-7)^2+(y-10)^2=4` are increasing uniformly w.r.t. times as 0.3 unit/s is and 0.4 unit/s, then they will touch each other at `t` equal to `45s` (b) `90s` (c) `11s` (d) `135s`

Promotional Banner

Similar Questions

Explore conceptually related problems

If the radii of the circles (x-1)^2+(y-2)^2+(y-2)^2=1 and (-7)^2+(y-10)^2=4 are increasing uniformly w.r.t. time as 0.3 units/s and 0.4 unit/s, respectively, then at what value of t will they touch each other?

If the lines (x-1)/2=(y+1)/3=z/(5t-1) and (x+1)/(2s+1)=y/2=z/4 are parallel to each other, then value of s, t will be

Consider the circles S_(1):x^(2)+y^(2)=4 and S_(2):x^(2)+y^(2)-2x-4y+4=0 which of the following statements are correct?

Inside the unit circle S={(x,y)|x^(2)+y^(2)=1} there are three smaller circles of equal radus a,touches to each other and also touches to S.The value of a equals

A circle S passes through the point (0, 1) and is orthogonal to the circles (x -1)^2 + y^2 = 16 and x^2 + y^2 = 1. Then (A) radius of S is 8 (B) radius of S is 7 (C) center of S is (-7,1) (D) center of S is (-8,1)

The point (1,4) are inside the circle S:x^(2)+y^(2)-6x-10y+k=0. What are the possible values of k if the circle s neither touches the axes nor cut them