A mass slides down a frictionless ramp as shown and collides with another stationary mass that is attached to a spring. The two masses stick together and enter into Simple Harmonic Motion.
(a) What is the total momentum of the 2 masses just after they collide?
(b) How much energy is lost in the collision?
(c) If the spring constant of the spring is 200 N/m, what will be the amplitude of the oscillation?
(d) What is the maximum speed the masses attain & where will this occur?
(e) What is teh acceleration of the masses when the spring compression is maximum?
pleaaase help....i'm so confused.....there's a pic w/ it that shows that the both masses are 5 kg each...& the mass that is sliding down the ramp was 2.5m high b4 is started sliding... any help whatsoever wud be apreciated...thank u sOoOo much!!!
2007-02-19 08:16:50 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Since there is no friction mass1 will satisfy 1/2mv^2 =mgh at bottom of ramp, solve for v (it will have momentum mv)
a)momentum is conserved so the answer is mv
b) get new velocity by (m+m)_?=mv so 1/2v then energy loss=1/2mv^2-1/2(2m) / (v/2)^2
c) the potential energy stored in a spring = 1/2kx^2 (the amplitude is xmax) =1/2(2m) / (v/2)^2
I will let you do d) and e) yourself They are easier.
2007-02-19 09:55:47 · answer #1 · answered by meg 7 · 1⤊ 0⤋