Posted by COFFEE on Monday, February 26, 2007 at 4:11pm.
A stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.0 kg, encounters a coefficient of kinetic friction ÁL = 0.40 and slides to a stop in distance dL = 0.15 m. Piece R encounters a coefficient of kinetic friction ÁR = 0.50 and slides to a stop in distance dR = 0.20 m. What was the mass of the original block?
For Further Reading
* Physics - bobpursley, Sunday, February 25, 2007 at 5:24pm
the momentum of L and R are equal.
then solve for velocity L (KE=energy)
knowing velocityL, you can use momentum to find veloicty R.
* Physics - COFFEE, Sunday, February 25, 2007 at 11:29pm
energyL = mu*mg*distance
energyL = (.4)(2)(9.8)(.15)
energyL = 1.176
KE = 1/2mv^2
1.176 = 1/2(2)v^2
v = 1.08 m/s
Then which equation do I use???
So the momentum sum is zero.
You have to solve for Vr the same way.
1/2 Mr*Vr^2= Mur*Mr*g*Dr notice the Mr divide out, so solve for Vr. Put that in the equation
solve for mass r.
Then total mass is massR+2
Answer this Question
physics - In the figure, a stationary block explodes into two pieces L and R ...
Physics - A stationary block explodes into two pieces L and R that slide across ...
Re: PHYSICS - A stationary block explodes into two pieces L and R that slide ...
Physics - Block 1, with mass m1 and speed 4.5 m/s, slides along an x axis on a ...
physics - After several large firecrackers have been inserted into its holes, a ...
physics - suppose that a horizontal force of 0.7 n is required to pull a 5.0 kg ...
Physics - A 2.85 kg stationary package explodes into three parts that then slide...
Physics - A rocket, 8975 kg, traveling at 1255 m/s East explodes into two pieces...
ap physics - Starting from rest, a 10.2 kg block slides 2.90 m down a ...
Physics - A 10 g bullet is fired into a 5 kg wooden block initially at rest on ...