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buttretler
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Been stuck on this question for days and any help would be greatly appreciated
A baseball going horizontally at 32.0 m/s [E] with a mass of 0.152 kg is hit by a bat for 0.002 seconds. the velocity after the ball after contact is 52.0 m/s [W 20 N]
Find the impulse experienced by the ball. (I'm guessing total impulse, first vector and the other)
pretty much what i have to work with is F net Δt = m(v2-v1)
Tutors keep telling me I'm wrong without pointing me in the right direction just adding more confusion. here is what i did. ...
V1 being its initial vector
v1x = 32cos0 = 32
v1y = 32sin0 = 0
V2 being after collision
v2x = -52cos20 = -48.864
v2y = 52sin20 = 17.785
now applying Fnet Δt = m(v2-v1) for x and y components.
fnetx Δt = m(-80.864)
fnetx(0.002)=0.152(-80.864)
fnetx = -6145.664
then same stuff for y
fnety =1351.664
after that i use both values to plug into a triangle then Pythagorean to find unknown side which to me seems like it would be the impulse of the ball. which i got 6292.5 kg m/s.
I need help with this, I just can't seem to rack my brain around what is wrong. Things I'm pretty sure I need to use is the fnet Δt=m(v2-v1) and some kind of triangle.
Thanks a lot in advance guys.
A baseball going horizontally at 32.0 m/s [E] with a mass of 0.152 kg is hit by a bat for 0.002 seconds. the velocity after the ball after contact is 52.0 m/s [W 20 N]
Find the impulse experienced by the ball. (I'm guessing total impulse, first vector and the other)
pretty much what i have to work with is F net Δt = m(v2-v1)
Tutors keep telling me I'm wrong without pointing me in the right direction just adding more confusion. here is what i did. ...
V1 being its initial vector
v1x = 32cos0 = 32
v1y = 32sin0 = 0
V2 being after collision
v2x = -52cos20 = -48.864
v2y = 52sin20 = 17.785
now applying Fnet Δt = m(v2-v1) for x and y components.
fnetx Δt = m(-80.864)
fnetx(0.002)=0.152(-80.864)
fnetx = -6145.664
then same stuff for y
fnety =1351.664
after that i use both values to plug into a triangle then Pythagorean to find unknown side which to me seems like it would be the impulse of the ball. which i got 6292.5 kg m/s.
I need help with this, I just can't seem to rack my brain around what is wrong. Things I'm pretty sure I need to use is the fnet Δt=m(v2-v1) and some kind of triangle.
Thanks a lot in advance guys.
