on the car question, you missed 3 of 4.
Do you have any logic for your thinking? It probably would help if you posted that, so we could perhaps critique it.
CAN SOMEONE PLEASE HELP ME; I NEED TO KNOW IF MY ANSWERS TO THESE QUESTIONS ARE CORRECT! THANK YOU SO MUCH!!
1.) Whenever an interaction occurs in a system forces occur in equal and opposite pairs. Which of the following do not always occur in equal and opposite pairs?
a) impulses
b) accelerations
c) momentum changes
d) all of these
e) none of these
**e.) none of these**
A Honda Civic and Lincoln Town Car are initially at rest on a horizontal parking lot at the edge of steep cliff. The Town Car has twice as much mass as the Civic. Equal constant forces are applied to each car and they accelerate across equal distances (ignore effects of friction.) When they reach the far end of the lot the force is suddenly removed, whereupon they sail through the air and crash on the ground below.
1.) Which has the greater acceleration?
**The Town Car**
2.) Which car spends more time along the surface of the lot, the faster or slower one?
**The slower one**
3.) Which car lands farthest horizontally from the edge of the cliff onto the ground below?
**The Town Car**
4.) Which car spends more time in the air from the edge of the cliff to the ground below?
**The Lincoln Town Car**
2 answers
1.) I think the civic car because the town car has doubled mass and when mass is doubled, the acceleration is halved so the Civic has a greater acceleration because of a smaller mass.
2.) the slower car spends more time, which is the town car because it is not accelerating as fast as the civic.
4.) the civic car spends more time in the air because it's mass is not as great as the town cars and it takes it longer to reach terminal speed so it spends more time in the air.
3.) I think the civic car lands farther because it has less mass so it will be able to go out more and it's accelerating more then the town car, which has more mass and will fall before closer to the lot then the civic!
2.) the slower car spends more time, which is the town car because it is not accelerating as fast as the civic.
4.) the civic car spends more time in the air because it's mass is not as great as the town cars and it takes it longer to reach terminal speed so it spends more time in the air.
3.) I think the civic car lands farther because it has less mass so it will be able to go out more and it's accelerating more then the town car, which has more mass and will fall before closer to the lot then the civic!
1 answer