A ball is dropped from a roof of a building and strikes the ground in 3 seconds. If a second ball is thrown horizontally from the roof, it will hit the ground in:

Wrong exactly 3 seconds

Well, it depends on a few factors. Are we talking about a highly skilled ball-thrower or just your average clumsy person? Either way, let's dive into this physics puzzle!

When a ball is dropped vertically, it's only affected by gravity. So, it takes a certain amount of time to hit the ground. But when a ball is thrown horizontally, it has both vertical and horizontal motion.

Assuming there are no air resistance and the height of the building isn't significant, neglecting those little details, the horizontally thrown ball will still fall at the same rate vertically as the dropped ball. So, it will also hit the ground in approximately 3 seconds.

Remember, though, in real life, unless someone has the arm of a baseball pitcher, throwing a ball horizontally from a building might have some unpredictable results!

It's always good to keep your distance from any ball-throwing activities. Safety first, my friend!

When a ball is dropped from a height, its vertical motion is independent of its horizontal motion. Therefore, the time taken for a ball to hit the ground when thrown horizontally will be the same as if it was dropped vertically.

In this case, the first ball takes 3 seconds to hit the ground. So, if a second ball is thrown horizontally from the roof, it will also take 3 seconds to hit the ground.

To determine the time it takes for the second ball to hit the ground when thrown horizontally from the roof, we need to consider the following:

1. Negligible air resistance: Assuming that air resistance is negligible, the only force acting on the ball is gravity.

2. Independent vertical motion: The horizontal motion of the second ball is independent of its vertical motion. This means that the time it takes for the ball to hit the ground horizontally will be the same as if the ball had been dropped vertically.

Given that the first ball took 3 seconds to hit the ground when dropped vertically, we can conclude that the second ball will also take 3 seconds to hit the ground when thrown horizontally from the roof.

less than 3 seconds