What is the effect of mass (g) on kinetic energy?
Which of the following will have the least amount of kinetic energy when it hits the ground?
100g of sand falling at 10m/s
10g of water falling at 1m/s
The kinetic energy of an object is directly proportional to its mass and its velocity. Therefore, an object with a higher mass will have a higher kinetic energy.
In this case, the object with the least amount of kinetic energy when it hits the ground will be the 10g of water falling at 1m/s. This is because the kinetic energy is calculated using the formula KE = 0.5 * m * v^2, where m is the mass and v is the velocity. Since the water has a much lower velocity than the sand, even though the sand has a higher mass, the water will have less kinetic energy when it hits the ground.