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Variation of G Due to Height and Depth

Is Projectile...

Question

Is Projectile motion possible in outer space if we apply a constant horizontal force (not gravity) downward?

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Solution

$I n t h e s p a c e t h e r e a r e n o f o r c e s a c e p t g r a v i t y o f t h e n e a r e s t s t a r . S o i f g r a v i t y i s n o t p r e s e n t t h e n s i m p l y h o r i z o n t a l f o r c e i s n o t s u f f i c i e n t t o p r o v i d e p r o j e c t i l e m o t i o n .$

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Q. Assertion :Circular and projectile both are two dimensional motion. But in circular motion we cannot apply

\to v = \to u + \to a t

directly, whereas in projectile motion we can. Reason: Projectile motion takes place under gravity, while in circular motion gravity has no role.

Q. Assertion :In the motion of projectile the horizontal component of velocity remains constant Reason: The force on the projectile is gravitational force which acts only in vertically downward direction

Q. Assertion (A): In the motion of projectile the horizontal component of velocity remains constant

Reason (R) : The force on the projectile is the gravitational force which acts only in the vertically downward direction

Q. In gravity free space heat transfer is not possible by

Q. The horizontal range of a projectile is

R

and the maximum height attained by it is

H

. A strong wind now begins to blow in the direction of horizontal motion of the projectile, giving it a constant horizontal acceleration equal to

g

. Under the same conditions of projection, the new range will be (g = acceleration due to gravity)

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Variation of G Due to Height and Depth

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