Calculating Speed of Dropped Baseball Using Conservation of Energy Method

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In summary, speed is the measure of how fast an object is moving, while velocity is the measure of how fast an object is moving in a specific direction. Gravity affects the motion of objects by causing them to accelerate towards the center of the Earth. Potential energy is the energy that an object has due to its position or state, while kinetic energy is the energy an object has due to its motion. Friction is a force that opposes motion between two surfaces, which can either slow down or stop an object's motion. Temperature affects the behavior of gases by changing the average kinetic energy of the particles, which in turn affects the pressure of the gas.
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Trecero
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Please help! Physics Qyestion!

1. A 145g baseball is dropped from a tree 13.0m above the ground. Using a conservation of energy method, find the speed of the ball just as it hits the ground. Ignore air resistance.



2. Sum Of Ei = Sum Of Ef. That is about as far as i got.



3. I don't know where to start!
 
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  • #2


Can you find expressions for the initial and final energies? What is each term the sum of?
 
  • #3


Ok thanks i got it now!
 

1. What is the difference between speed and velocity?

Speed is the measure of how fast an object is moving, while velocity is the measure of how fast an object is moving in a specific direction. In other words, velocity takes into account both the speed and direction of an object's motion.

2. How does gravity affect the motion of objects?

Gravity is a force that pulls objects towards each other. It affects the motion of objects by causing them to accelerate towards the center of the Earth. The strength of gravity depends on the mass of the objects and the distance between them.

3. What is the difference between potential and kinetic energy?

Potential energy is the energy that an object has due to its position or state, while kinetic energy is the energy an object has due to its motion. In other words, potential energy is stored energy, while kinetic energy is the energy of movement.

4. How does friction affect motion?

Friction is a force that opposes motion between two surfaces that are in contact with each other. It can slow down or stop the motion of an object by converting its kinetic energy into heat. However, friction can also be useful in certain situations, such as when walking or driving a car.

5. How does temperature affect the behavior of gases?

Temperature is a measure of the average kinetic energy of particles in a substance. In gases, as the temperature increases, the particles move faster and collide with each other more frequently, causing an increase in pressure. When the temperature decreases, the particles move slower and collide less frequently, resulting in a decrease in pressure.

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