A man $2$ metres tall walks away from a lamp post $5$ metres height at the rate of $4.8$ km/hr. The rate of increase of the length of his shadow is

Q. A man 2 metres tall walks away from a lamp post 5 metres height at the rate of 4.8 km/hr. The rate of increase of the length of his shadow is
(a) 1.6 km/hr
(b) 6.3 km/hr
(c) 5 km/hr
(d) 3.2 km/hr

Q. A man $1.5m$ tall walks away from a lamp post $4.5m$ high at a rate fo $4km/hr$. How fast is the farther end of shadow moving on the pavement?

Q. A man 2 metres high walks at a uniform speed of 5 km/hr away from a lamp-post 6 metres high. Find the rate at which the length of his shadow increases.

Q. A man of height $2$ m walks at a uniform speed of $5$ km/hour away from a lamp post of 6m height. His shadow length increases at the rate of

Q. A man $1.5m$ tall walks away from a lamp post $4.5m$ high at a rate of $4km/hr$(i)How fast is his shadow lengthening?(ii)How fast is the farther end of shadow moving on the pavement? ?