Application of DerivativeHard
Question
A man 2 metres high walks at a uniform peed of 5 km/hr away from a lamp-post 6 metres high. The rate at which the length of his shadow increases, is
Options
A.2 km/hr
B.2.5 km/hr
C.4 km/hr
D.3 km/hr
More Application of Derivative Questions
The rate of change of the volume of a cone with respect to the radius of its base is-...The tangent to the curve x = a(θ − sinθ ), y = a(1 + cosθ) at the points = (2k + 1)π, k∈...The set of points where the tangent to the curve y3 − 3xy + 2= 0 is horizontal is -...If sum of n terms of a sequence is given by Sn = 3n2 - 5n + 7 & tr represents its rth term, then -...The lines tangent to the curves y3 - x2y + 5y - 2x =0and x4 - x3y2 + 5x + 2y = 0 at the origin intersect at an angle f(x...