A student drops the four objects listed from a height of 2 meters into a bucket of water. Which object will have the greatest kinetic energy?

small rock
penny
baseball table tennis ball
baseball

The object with the greatest kinetic energy will be the baseball, as it has the most mass compared to the other objects. Kinetic energy is calculated using the formula KE = 0.5 * m * v^2, where m is mass and v is velocity. Since all objects are dropped from the same height, they will all have the same velocity when hitting the water. Therefore, the mass of the object will determine its kinetic energy.

what the answer

The baseball will have the greatest kinetic energy since it has the most mass compared to the other objects.

what is one way to decrease the kinetic energy of an abject

One way to decrease the kinetic energy of an object is to reduce its velocity. This can be done by applying a force in the opposite direction of the object's motion, causing it to slow down. Another way is to reduce the mass of the object by removing material or changing its shape, as kinetic energy is directly proportional to mass.

what is one way to decrease the kinetic energy of an abject

decrease its volume.
increase its weigh.
decrease its speed
increase its mass

One way to decrease the kinetic energy of an object is to decrease its speed. As the object's velocity decreases, its kinetic energy will also decrease.

answer

Decrease its speed

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