A ball thrown horizontally from an apartment balcony hits the ground in 5 seconds. If the horizontal velocity of the ball is doubled, how long will it take to hit the ground?

T = 5 Sec.

T is not affected by hor. velocity.

To solve this problem, we need to understand the basic principles of projectile motion.

When a ball is thrown horizontally, the only force acting on it is gravity pulling it downward. This means that the vertical motion is affected by gravity alone, while the horizontal motion remains constant throughout the entire flight.

In the given scenario, we know that the ball takes 5 seconds to hit the ground. This time represents the vertical motion of the ball, which is influenced by gravity.

Since we are only concerned with the horizontal motion, we can ignore the vertical component and focus solely on the horizontal velocity.

When the horizontal velocity of the ball is doubled, the time it takes to hit the ground remains the same. This is because the horizontal velocity does not affect the vertical motion.

Therefore, even when the horizontal velocity is doubled, the ball will still take 5 seconds to hit the ground.

To solve this problem, we need to understand that the horizontal velocity of a projectile does not affect the time it takes to reach the ground. Regardless of the horizontal velocity, the downward acceleration due to gravity remains the same.

Therefore, the time it takes for the ball to hit the ground will remain the same, which is 5 seconds.