What was the kinetic energy of the ball just before it hit the ground?

Explanation: Right before it hits the ground, the initial potential energy and the final kinetic energy will equal each other due to conservation of energy. If we solve for initial potential, we can find final kinetic energy.

What is the kinetic energy when it reaches the ground?

When an object falls freely, its potential energy gets converted into kinetic energy. When the object hits the ground, its kinetic energy gets converted into heat energy and sound energy.

What is the initial kinetic energy of the ball?

We can say that the initial energy is equal to the total kinetic energy. At the peak height of the trajectory, the velocity will be zero and the ball will have a maximum displacement. We can say that the energy at this point is equal to the total potential energy.

How much kinetic energy does the ball have when it hits the ground?

So this means that P.E.initial = K.E.final. So we will calculate the potential energy before the ball begins to fall. All of the potential energy is converted into kinetic energy when the ball hits the ground so the kinetic energy then is 1.3 x 102 J.

How do you find the kinetic energy of a falling object?

2 Answers

1. The formula of Kinetic energy is 12mv2 where m is mass and v is velocity.
2. We know mass, so lets find velocity.
3. Plugging it into the equation, if it has been falling for 2 seconds, then its velocity is 9.8×2=19.6 meters per second.
4. K.E.= 12×5×19.62 = 960.4 J.

What is the velocity of mango just before it hits the ground?

The square root of 196 (m/s)^2 is 14 m/s. Therefore the velocity of the mango fruit just before it hits the ground is 14 m/s. A ball of mass 0.5 kg is dropped from rest at a height of 5 m above the ground, what is its velocity when it hits the ground?

What happens to potential energy when mass is double the height?

An object which is not raised above the ground will have a height of zero and therefore zero potential energy. When you double the mass or the height of an object, its potential energy will also double.

How do you find the Pepe of a gravitational force?

PE grav. = m * h * g. Where: m – mass; h – height; g – the gravitational field strength (9.81 on Earth) The formula is relatively simple. An object which is not raised above the ground will have a height of zero and therefore zero potential energy. When you double the mass or the height of an object, its potential energy will also double.

What is the work done against the gravity when moving horizontally?

The work done against the gravity when a body is move horizontally along a frictionless surface is zero as the force of gravity acts perpendicular to the direction of motion. Q9.