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Question
A bomb explodes in air when it has a horizontal speed of v. It breaks into two identical pieces of equal mass. If one goes vertically up at a speed of 4v, the velocity of other immediately after the explosion is ______.
Options
-4v`hat"j"`
`-"v"hat"i"`
`2"v"hat"i" - 4 "v" hat"j"`
`2"v"hat"i" + 4 "v" hat"j"`
MCQ
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Solution
A bomb explodes in air when it has a horizontal speed of v. It breaks into two identical pieces of equal mass. If one goes vertically up at a speed of 4v, the velocity of other immediately after the explosion is `underline(2"v"hat"i" - 4 "v" hat"j")`.
Explanation:
The velocity of other pieces immediately after the ex-plosion is `2"v"hat"i" - 4 "v" hat"j"`.
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