GENERAL KNOWLEDGE

GK

PHYSICS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following affects the motion of a projectile launched horizontally?
 A Final velocity B Initial velocity C Mass D maximum height
Explanation:

Detailed explanation-1: -The most important factors affecting projectile motion are: The angle of the launch: The angle at which the object is thrown determines how high (vertically) or how far (horizontally) the object will reach. Initial speed: Greater the initial speed of launch, the higher and farther will the object reach.

Detailed explanation-2: -There must be a horizontal force to cause a horizontal acceleration. (And we know that there is only a vertical force acting upon projectiles.) The vertical force acts perpendicular to the horizontal motion and will not affect it since perpendicular components of motion are independent of each other.

Detailed explanation-3: -The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.

Detailed explanation-4: -Expert Answer In projectile motion, when an object is thrown horizontally, the object posses only horizontal initial velocity and the initial vertical velocity is zero. The initial horizontal velocity remains the same throughout the projectile motion.

Detailed explanation-5: -The horizontal velocity of a projectile is 0 m/s at the peak of its trajectory. The horizontal velocity of a projectile is unaffected by the vertical velocity; these two components of motion are independent of each other.

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