Momentum, Energy, Work & Power

Physics
Tutor: None Selected Time limit: 1 Day

May 23rd, 2015

hello there welcome to study pool!


the energy block has end of the ramp=mgh

=8*9.81*2

=156.96j

the enrgy gives from wind tunel=F*s

=15*3=45j

total energy=156.96+45

=201.96j


that total energy convert to momentum

then

1/2*m*v^2=201.96

v^2=201.96*2/8

v=7.1m/s


but it has initial velocity of 6m/s

so total velocity=7.1+6=13.1m/s


so the answer is 13.1 m/s


hope you happy with my answer please don't forget to rate me and leave a comment.if you have any question let me know i'll choose the best answer for you.thank you.see you soon again...:)

May 24th, 2015

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