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Calculate the velocity of ball just before it hits the ground when dropped from a height of 6m?
Wiki User
∙ 10y ago
Here are two different methods to solve this kind of problem.
1) Use one of the formulae for constant acceleration. In this case, vf2 = vi2 + 2as, where vf is the final velocity, vi is the initial velocity (zero in this case), a is the acceleration (9.8 meters / second2), and s is the distance.
2) Do an energy calculation, as follows: Calculate the potential energy at a height of 6 meters, with the formula PE = mgh. Since we can assume that the entire potential energy gets converted to kinetic energy just before the ball hits the ground, solve for velocity, in the kinetic energy formula.
Wiki User
∙ 10y ago
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Is an object that is dropped will hit the ground before an object that is thrown horizontally from the same height?
No. They both hit the ground at the same time. This is because the VERTICAL component of velocity in both cases is the same.
Will the object that is dropped hit the ground before an object that is that it is thrown horizontally from the same height?
No. They both hit the ground at the same time, because the VERTICAL component of velocity in both cases is the same.
Why velocity is non zero when ball dropped to the ground?
The initial velocity of a dropped ball is zero in the y (up-down) direction. After it is dropped gravity causes an acceleration, which causes the velocity to increase. F = ma, The acceleration due to gravity creates a force on the mass of the ball.
A tennis ball is dropped 1.2 m above the ground With what velocity does it hit the ground before the ground stops it?
mgh = 1/2 * m * v^2 v = sqrt (2 * 9.8 * 1.2) v = 4.8 m/s [down]
A tennis ball is dropped from 1.55 m above the ground It rebounds to a height of 0.824 mWith what velocity does it hit the ground?
31 m/s
When dropped from a building a cricket ball and a football have the same velocity or they hit the ground at same instant which more correct answer?
they hit the ground at same instant
A rock is dropped from rest off the top of Papa John’s Cardinal Stadium. If the top row of bleachers is 88 meters high, how long will it take the rock to reach the ground What will the velocity of the rock be right before it hits the ground?
5968
What is the speed of an object weighing 80 pounds dropped from 7 feet?
it strikes the ground at a velocity of 17.9 ft/s
What is the velocity of a ball that has a 3.03 second hit to the ground?
If it was thrown horizontally or dropped, and hit the ground 3.03 seconds later, then it hit the ground moving at a speed of 29.694 meters (97.42-ft) per second. If it was tossed at any angle not horizontal, and hit the ground 3.03 seconds later, we need to know the direction it was launched, in order to calculate the speed with which it hit the ground.
How would you use the word terminal velocity in a sentence?
We will reach terminal velocity just before we hit the ground, then the result of our velocity will be terminal.
How do you calculate the horizontal distance traveled by an object if you are given the horizontal velocity and time in the air?
You cannot because you do not know how long before the object falls to the ground and so stops moving.
Does a ball dropped with horizontal velocity take longer to hit the ground than on dropped at rest?
no because the ball is round and it would make no difference in what side you put it on because it has no sides
