You are pushing a wooden crate across the floor at constant speed. You decide to turn the crate on end,
reducing by half the surface area in contact with the floor. In the new orientation, to push the same crate
across the same floor with the same speed, the force that you apply must be about
1. four times as great
2. twice as great
3. equally great
4. half as great
5. one-fourth as great
as the force required before you changed the crate’s orientation.
You are a passenger in a car and not wearing your seat belt. Without increasing or decreasing its
speed, the car makes a sharp left turn, and you find yourself colliding with the right-hand door. Which is
the correct analysis of the situation?
1. Before and after the collision, there is a rightward force pushing you into the door.
2. Starting at the time of collision, the door exerts a leftward force on you.
3. both of the above
4. neither of the above
- LILv 71 decade agoFavorite Answer