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A 3kg model rocket is launched striaght ...

A `3kg` model rocket is launched striaght up with sufficient initial speed to reach a maximum height of `100 m`, even though air resistance (a non-conservative force) performs-`900 J` of work on the rocket. The highest the rocket would have gone without air resistance will be

A

`70 m`

B

`130 m`

C

`180 m`

D

`230 m`

Text Solution

Verified by Experts

The correct Answer is:
B
`mgh+W_(f) = mgH`
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