JEE Physics Practice Question
A person of height $1.6 \mathrm{~m}$ is walking away from a lamp post of height $4 \mathrm{~m}$ along a straight path on the flat ground. The lamp post and the person are always perpendicular to the ground. If the speed of the person is $60 \mathrm{~cm} \mathrm{~s}^{-1}$, then what is the speed of the tip of the person's shadow on the ground with respect to the person in $\mathrm{cm} \mathrm{s}^{-1}$?
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