Saturday

November 1, 2014

November 1, 2014

Posted by **Leo** on Tuesday, September 4, 2012 at 7:42pm.

A bartender slides a glass of beer down a bar with an initial velocity of 2m/s. The coefficient of kinetic friction of the bar is 0.05 and the length of the bar is 3m and the height of the bar is 1m. The mas 0.5kg. How far from the bar will the glass hit the ground?

Thanks very much!

- physics -
**Elena**, Wednesday, September 5, 2012 at 12:24pmKE1=KE2+W(fr)

KE2=KE1- W(fr)=

=mvₒ²/2 - μmgs=

=0.5(2²/2 - 0.05•9.8•3)=0.265 J.

KE2= mv²/2=0.265 J.

v=sqrt(2•KE2/m) =

= sqrt (2•0.265/0.5)=

=1.03 m/s.

h=gt²/2 =>

t =sqrt(2h/g)=

=sqrt(2•1/9.8) =0.45 s

s=v(x) •t=1.03•0.45=0.46 m.

**Answer this Question**

**Related Questions**

physics - A bartender slides a glass mug with a mass of 520 g along the top of ...

physics - In a local bar, a customer slides an empty beer mug down the counter ...

Physics - A server at a diner slides a 0.521 kg root beer from the end of the ...

Physics - A wooden block slides directly down an incline plane at a constant ...

physics - a bar is pushed so that it slides across the floor. how far will it go...

Physics- Vectors - A bartender slides a beer mug at 1.4 m/s towards a customer ...

physics 221 - Question Part Points Submissions Used An 8.61-kg block slides with...

Physics - A 59.5 kg person, running horizontally with a velocity of +3.90 m/s, ...

Physics - A box of mass m with an initial velocity of v0 slides down a plane, ...

simple physics problem - A crate sliding down a ramp reaches the bottom of the ...