The velocity of a projectile at the initial point A is 2-3-m-s- Its velocity in m-s at point B is

The correct option is C 2î 3ĵ When the projectile hits back the ground again,the #160;X component of its initial projected velocity remains unchanged a ...

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Standard XII

Physics

Relation between Work Done and PE

The velocity ...

Question

The velocity of a projectile at the initial point A is $(2^i + 3^j) m / s$ . Its velocity (in $m / s$ ) at point B is

- 2^i - 3^j

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- 2^i + 3^j

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2^i - 3^j

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2^i + 3^j

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Solution

The correct option is C $2^i - 3^j$
When the projectile hits back the ground again,
the X-component of its initial projected velocity remains unchanged and the Y-component reverses because of same horizontal level (magnitude same while direction becomes opposite).
So, Option C.

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The velocity of a projectile at the initial point A is (2^i+3^j)m/s. Its velocity (in m/s) at point B is

The correct option is C 2^i−3^jWhen the projectile hits back the ground again,the X-component of its initial projected velocity remains unchanged and the Y-component reverses because of same horizontal level (magnitude same while direction becomes opposite).So, Option C.

The velocity of a projectile at the initial point A is $(2^i + 3^j) m / s$ . Its velocity (in $m / s$ ) at point B is

The correct option is C $2^i - 3^j$
When the projectile hits back the ground again,
the X-component of its initial projected velocity remains unchanged and the Y-component reverses because of same horizontal level (magnitude same while direction becomes opposite).
So, Option C.