A sheet of paper is dropped from a of height of 5m from ground. Find the velocity with which it hits the ground.

13 answers

To find the velocity with which the sheet of paper hits the ground, we can use the equation for free fall:

vf^2 = vi^2 + 2ad

Where vf is the final velocity, vi is the initial velocity (which is 0 in this case as the sheet of paper is dropped), a is the acceleration due to gravity (approximately equal to 9.8 m/s^2), and d is the distance fallen (5m in this case).

Plugging in the values, we have:

vf^2 = 0 + 2 * 9.8 * 5

vf^2 = 98

Taking the square root of both sides, we get:

vf = √98

vf ≈ 9.9 m/s

Therefore, the velocity with which the sheet of paper hits the ground is approximately 9.9 m/s.
A ball is dropped from a of height of 5m from ground. Find the velocity with which it hits the ground.
To find the velocity with which the ball hits the ground, we can use the equation for free fall:

vf^2 = vi^2 + 2ad

Where vf is the final velocity, vi is the initial velocity (which is 0 in this case as the ball is dropped), a is the acceleration due to gravity (approximately equal to 9.8 m/s^2), and d is the distance fallen (5m in this case).

Plugging in the values, we have:

vf^2 = 0 + 2 * 9.8 * 5

vf^2 = 98

Taking the square root of both sides, we get:

vf ≈ √98

vf ≈ 9.9 m/s

Therefore, the velocity with which the ball hits the ground is approximately 9.9 m/s.
A flat sheet of paper is dropped from a of height of 5m from ground. Find the velocity with which it hits the ground.
To find the velocity with which the flat sheet of paper hits the ground, we can use the equation for free fall:

vf^2 = vi^2 + 2ad

Where vf is the final velocity, vi is the initial velocity (which is 0 in this case as the paper is dropped), a is the acceleration due to gravity (approximately equal to 9.8 m/s^2), and d is the distance fallen (5m in this case).

Plugging in the values, we have:

vf^2 = 0 + 2 * 9.8 * 5

vf^2 = 98

Taking the square root of both sides, we get:

vf ≈ √98

vf ≈ 9.9 m/s

Therefore, the velocity with which the flat sheet of paper hits the ground is approximately 9.9 m/s.
A crumpled up sheet of paper is dropped from a of height of 5m from ground. Find the velocity with which it hits the ground.
When a crumpled up sheet of paper is dropped, it will experience air resistance, which affects its velocity. To calculate the final velocity, we need to consider both the acceleration due to gravity and the air resistance.

Let's assume that the air resistance has a negligible effect on the velocity and focus on the gravity component. In this case, we can use the equation of motion for free fall:

vf^2 = vi^2 + 2ad

where vf is the final velocity, vi is the initial velocity (0 m/s as the paper is dropped), a is the acceleration due to gravity (approximately 9.8 m/s^2), and d is the distance fallen (5 m).

Plugging in the values, we have:

vf^2 = 0 + 2 * 9.8 * 5

vf^2 = 98

Taking the square root of both sides, we get:

vf ≈ √98

vf ≈ 9.9 m/s

Therefore, the velocity with which the crumpled up sheet of paper hits the ground, neglecting the effect of air resistance, is approximately 9.9 m/s.
Out of flat sheet of paper, balled up sheet of paper, and a ball. Which one will fall first when it’s held up 5 meters high?
When held up 5 meters high and then released, all three objects—the flat sheet of paper, the balled up sheet of paper, and the ball—will fall to the ground simultaneously.

This concept is known as the "principle of equivalence" and is a fundamental principle in physics. According to this principle, in the absence of air resistance or other external forces, all objects will fall with the same acceleration due to gravity, regardless of their mass or shape. Therefore, the time it takes for all three objects to reach the ground from a height of 5 meters will be the same.
Is this correct?
I apologize for the confusion caused by my previous response. When considering the effects of air resistance, the objects will not fall at the same rate.

In the presence of air resistance, the balled up sheet of paper will likely fall slower than the flat sheet of paper and the ball due to its increased surface area and greater susceptibility to air resistance. The more streamlined shape of the flat sheet of paper and the ball will allow them to experience less air resistance as they fall, causing them to reach the ground faster than the balled up sheet of paper.

Therefore, when considering air resistance, the flat sheet of paper and the ball will likely hit the ground first, while the balled up sheet of paper will take longer to reach the ground.
If I drop a ball and a balled up piece of paper at the same time at the height of 5m. Which one will fall first? And how long will it take for each of them to hit the ground?
If you drop a ball and a balled up piece of paper at the same time from a height of 5m, neglecting air resistance, they will both fall to the ground simultaneously. This is because, in the absence of any external forces, all objects will experience the same acceleration due to gravity.

The time it takes for an object to fall can be calculated using the equation:

t = √(2d / g)

where t is the time, d is the distance fallen (5m), and g is the acceleration due to gravity (approximately 9.8 m/s^2).

Plugging in the values:

For the ball:
t = √(2 * 5 / 9.8)
t ≈ √1.02
t ≈ 1.01 seconds (rounded to two decimal places)

For the balled up piece of paper:
t = √(2 * 5 / 9.8)
t ≈ √1.02
t ≈ 1.01 seconds (rounded to two decimal places)

Therefore, both the ball and the balled up piece of paper will hit the ground simultaneously, and it will take approximately 1.01 seconds for each of them to reach the ground.