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 ______.

विकल्प

• -4v`hat"j"`

• `-"v"hat"i"`

• `2"v"hat"i" - 4 "v" hat"j"`

• `2"v"hat"i" + 4 "v" hat"j"`

Answer 1

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"`.