The table gives some measurements about a small hailstone falling from a storm cloud:
mass of hailstone0.00050 kgdistance hailstone falls800 mspeed of hailstone as it hits the ground12 m/s \begin{array}{|l|l|} \hline \text{mass of hailstone} & 0.00050 \text{ kg} \\ \hline \text{distance hailstone falls} & 800 \text{ m} \\ \hline \text{speed of hailstone as it hits the ground} & 12 \text{ m/s} \\ \hline \end{array} mass of hailstonedistance hailstone fallsspeed of hailstone as it hits the ground0.00050 kg800 m12 m/sState the relationship between momentum, mass, and velocity.
Calculate the momentum of the hailstone as it hits the ground. Give the unit.
State the equation linking gravitational potential energy (GPE), mass, ggg, and height.
Calculate the change in gravitational potential energy (GPE) when the hailstone falls 800 m. (Assume g=10 m/s2g = 10 \text{ m/s}^2g=10 m/s2 or g=9.8 m/s2g = 9.8 \text{ m/s}^2g=9.8 m/s2).
State the kinetic energy (KE) of the hailstone as it hits the ground, assuming no energy losses.
State the equation linking kinetic energy, mass, and speed.
Show that the speed of the hailstone as it hits the ground, assuming no energy losses, would be about 130 m/s130 \text{ m/s}130 m/s.
Explain why the actual speed of the hailstone as it hits the ground is much less than 130 m/s130 \text{ m/s}130 m/s.
