Please select all that are correct.
Select one or more:
a. If two trucks (same model) are driving with the samevelocity, the empty truck has less momentum than the truck fullyloaded with rubber ducks
b. Law of conservation of momentum only works in 1D and 2D, butno higher
c. A snowball is thrown on a wall. It bounces off, but leaves awhite mark behind. This is neither a perfect elastic collision, nora perfect inelastic collision
d. Halving the time the force is applied on an object doublesthe impulse
e. When the law of conservation of momentum is concerned, a pileof sand cannot be used as a closed system because the grains ofsand do not stick together and there are too many of them
f. If a cup of hot coffee is defined as a closed system, thenthe steam coming off the surface has to be accounted for as part ofthe system
g. Having a pie thrown on one's face is an example of aninelastic collision
h. Velocity, momentum, and impulse can all be expressed in termsof their x-, y-, and z- components
i. When two figure skaters (one going SouthEast, the other goingNorthEast) clasp hands, they begin moving West before
