A helicopter is flying horizontally at `8m//s` at an altitude 180m when a package fo emergency medical supplies is ejected horizontally backward with a speed fo `12m//s` relative to the helicopter. Ignoring air resistance what is horizontal distance between the package and the helicopter when the package hits the ground?A. `120m`B. `24m`C. `36m`D. `72m`

A helicopter is flying horizontally at `8m//s` at an altitude 180m whe

1.	A helicopter is flying horizontally at `8m//s` at an altitude 180m when a package fo emergency medical supplies is ejected horizontally backward with a speed fo `12m//s` relative to the helicopter. Ignoring air resistance what is horizontal distance between the package and the helicopter when the package hits the ground?A. `120m`B. `24m`C. `36m`D. `72m`
Answer» Correct Answer - d Time taken by package to reach the ground: `T=sqrt((2xx180)/10)=6s` Horizontal distance travelled by helicopter in this time=`8xx6=48m`. Velocity of package w.r.t ground `=12-8=4 m//s`in backward direction. Horizontal distance travelled by package in time `T=4xx6=24m`. So horizontal distance between them `=48+24=72m`

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