When there is motion is both directions, state which direction is positive at the START of the problem. For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations: F t = m vf -m vi m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2 m1 vi1 + m2 vi2 = (m1 + m2) vf (m1 + m2) Vi = m1 vf1 + m2 vf2 6.) Ball 1 : m1 = 8 slugs and vi1 = 3 ft/s to the RIGHT Ball 2: m2 = 4 slugs and vi2 = 0 Ball 3: m3 = 6 slugs and vi3 = 0 picture the three balls all siting on a flat surface with some space between them. AFTER ball 1 strikes ball 2, ball 1 is traveling at 1.5 ft/s to the LEFT AFTER ball 2 strikes ball 3, ball 2 is traveling at 3 ft/s to the LEFT a,) What is the direction (left or right) and final velocity of ball 3? Vf3 =? Show all unit conversions step by step, if any.
When there is motion is both directions, state which direction is positive at the START of the problem.
For the impulse-momentum and the conservation of momentum problems: Plug your GIVEN VALUES into the equation FIRST then do the algebra. Use the following equations:
F t = m vf -m vi
m1 vi1 + m2 vi2 = m1 vf1 + m2 vf2
m1 vi1 + m2 vi2 = (m1 + m2) vf
(m1 + m2) Vi = m1 vf1 + m2 vf2
6.) Ball 1 : m1 = 8 slugs and vi1 = 3 ft/s to the RIGHT
Ball 2: m2 = 4 slugs and vi2 = 0
Ball 3: m3 = 6 slugs and vi3 = 0
picture the three balls all siting on a flat surface with some space between them.
AFTER ball 1 strikes ball 2, ball 1 is traveling at 1.5 ft/s to the LEFT
AFTER ball 2 strikes ball 3, ball 2 is traveling at 3 ft/s to the LEFT
a,) What is the direction (left or right) and final velocity of ball 3? Vf3 =?
Show all unit conversions step by step, if any.
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