What is the kinetic energy of the stone just before it strikes the ground?

If the rock weighs , what is its kinetic energy right before it hits 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.

How do you calculate kinetic energy from force?

To calculate the force of impact, divide kinetic energy by distance.

What is initial kinetic energy?

Initial kinetic energy is the amount of kinetic energy initially, when you first start paying attention (or at the start conditions of your problem). Final kinetic energy is the amount of kinetic energy at the point when you stop paying attention, or reach the final conditions of your problem.

What is the kinetic energy formula with an example?

In classical mechanics, kinetic energy (KE) is equal to half of an object’s mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.

How fast does Biff throw his rock?

Biff throws his rock downward and outward such that the angle between the initial velocity of the rock and the horizontal is 30 degrees. Biff throws the rock with a speed twice that of Bob’s rock.

When a ball reaches its highest point it has zero velocity?

When it reaches its highest point (before falling back downward), A) the velocity is zero, the acceleration is zero, and the force of gravity acting on the ball is directed downward. othe velocity is zero, the acceleration is directed downward, and the force of gravity acting on the ball is directed downward.

Which way does Bob throw his rock?

Bob throws his rock straight downward. Biff throws his rock downward and outward such that the angle between the initial velocity of the rock and the horizontal is 30 degrees. Biff throws the rock with a speed twice that of Bob’s rock.