- #1
naoki300
- 2
- 0
Homework Statement
A fast-moving massive car has a head-on collision with a slow-moving light car. Which car has a greater impulse?
The attempt at a solution
I think more information is needed to answer the question. But could the answer be that the impulse is the same?
Homework Statement
A cannon with a long barrel fires a shell faster because the shell experiences a greater:
a) acceleration
b)impulse
c)change in inertia
d)none
The attempt at a solution
I say impulse but then i want to say none of the above. is it impulse because of the increase intime?
lastone
Homework Statement
If a fast-moving object strikes you, you'll experience less force of impact if you can:
a)shorten the time the momentum decreases.
b)increase the time the momentum decreases.
c)either shorten or increase the time, for the result is the same.
The attempt at a solution
the wording of the problem just confuses me, because at first i thought it was b but then thought a and went back to b. i just don't get the "the momentum" decreases part of the two answers.
A fast-moving massive car has a head-on collision with a slow-moving light car. Which car has a greater impulse?
The attempt at a solution
I think more information is needed to answer the question. But could the answer be that the impulse is the same?
Homework Statement
A cannon with a long barrel fires a shell faster because the shell experiences a greater:
a) acceleration
b)impulse
c)change in inertia
d)none
The attempt at a solution
I say impulse but then i want to say none of the above. is it impulse because of the increase intime?
lastone
Homework Statement
If a fast-moving object strikes you, you'll experience less force of impact if you can:
a)shorten the time the momentum decreases.
b)increase the time the momentum decreases.
c)either shorten or increase the time, for the result is the same.
The attempt at a solution
the wording of the problem just confuses me, because at first i thought it was b but then thought a and went back to b. i just don't get the "the momentum" decreases part of the two answers.