Question

A 1.6 Kg cart moving at 6.0 m/s [E] collides with a 1.2 Kg cart moving at 3.0 m/s [W]. The head-on collision is completely elastic and is cushioned by a spring.

B) find the velocity of the 1.2 kg cart after the collision.

can someone cheque my werk plz?

Answer 1

show me your work ill check it

Answer 2

im going to draw here

Answer 3

k

Answer 4

now i solve for vaf in terms of vf2 and plug that into the first equation.

Answer 5

this got super complicated sorry dude

Answer 6

.................................:/

Answer 7

i thought this was gonna be some like multi choice and i could narrrow it down but i cant do taht sorry

Answer 8

uhg ok thanks for trying sour <3 :)

Answer 9

yea sorry again dude

Answer 10

oOH, momentum, fun stuff :)

Answer 11

yes

Answer 12

btw this is the second part of the question...

Answer 13

What was the first part?

Answer 14

the first part was bout finding the velocity of the two carts when the spring is at maximum compression.

Answer 15

the velocity of both carts after the collision was 4.71 m/s

Answer 16

And you're just not sure if that's correct?

Answer 17

no..the first part of the question is correct. i'm struggling with the second half of the second question. i've found the spring constant... but i dont know how to proceed with the remaining of the question...

Answer 18

Hmm, when it compresses I know that KE is converted into PE spring. This is elastic so we know everything is conserved. Do we have a distance for the compression to determine how much KE is converting.

Answer 19

nah i'dn't even be here if i had the horizontal distance. lol

Answer 20

Yeah I see your point, lol

Answer 21

Mhm yeah, I am unsure with how to approach this. If @Sam or billy comes on, hopefully they can take a look.

Answer 22

Perhaps take a look at this pdf as it has an example problem that may help you

http://www.mrcaslick.altervista.org/SPH4U/TEXTBOOK/5.4.pdf

Answer 23

@random231 @Sam

Answer 24

@Sam

Answer 25

@Vocaloid