Can solve these problem please?! \"ERIMENT Part III: You determine what kind of
ID: 1581564 • Letter: C
Question
Can solve these problem please?!
"ERIMENT Part III: You determine what kind of Collision! For each case below, determine if momentum and kinetic energy are conserved. Label each "elastic," "partially inelastic, "completely/perfectly inelastic," or "external force required." If an external force is required, comment on whether the external force positive or negative work on the system. does Case 1: mi 5.0 kg, vIu 10 m/s, m2 vir = 0.0, va-5.0 m/s 10 kg, v2i-0 Case 2: m,-9.0 kg, v1,-10 m/s, n12 = 10 kg, v2i ur= 0.0, v3(-3.0 m/s 0.0 Case 3: m; = 5.0 kg, V1,-5.0m/s, n',-10 kg, v,--10 m/s v1r_ 0.0, var-15 m/s Case 4: m,-10kg, wi-|0m/s, ln2 = 5.0 kg, ½,-5.0 m/s vir = 8.3, vr= 8.3 m/sExplanation / Answer
1: pi = m1 v1i + m2 v2i
pi = (5 x 10) + (10x0) = 50 kg m/s
pf = m1 v1f + m2 v2f
= (5 x 0) + (10 x 5) = 50 kg m/s
pi = pf ; so no external force is required.
Ki = m1 v1i^2 / 2 + m2 v2i^2 / 2
Ki = (5 x 10^2 / 2) + (0) = 250 J
Kf = (10 x 5^2 / 2) = 125 J
Ki is not equal to kf hence this is partially inelastic collision.
2: pi = 90 kg m/s
pf = 30 kg m/s
ANs: external force required.
3. pi = 25 - 100 = - 75 kg m/s
pf = 150 kg m/s
pi is not equal to pf.
Ans: external force required.
4. pi = 125 kg m/s
pf = 125 kg m/s
so no external force .
after collision, both masses are moving with same velocity that means they are moving together.
Ans: Perfectly inelastic collision