seated facing each other and on the count of three they put their hands to on a
ID: 1581513 • Letter: S
Question
seated facing each other and on the count of three they put their hands to on a sheet of (frictionless) ice at rest. Albert and Blaise are hree they put their hands together and push off of each AIDert is moving at 1.2 m/s in some direction. If Albert's mass is 60kg and Blaise's mass is 90kg, what is Blaise's speed after the push P.-P. mv, - m. V. (1.2)-is :60 = 9. V 8 m/s V. - 4. V - ), 2 - 60 After a few moments Blaise is caught by Charles who is also seated at rest on the ice. If they continue moving together in the same direction at 0.5m/s, what is Charles's mass? 0.8 * 90 = 0.5 N. Jy9 us V = 0.3 x 9. o 5 If, during the collision between Blaise and Charles, Blaise experienced and average force of 270N how long did the 'collision' between Blaise and Charles last?Explanation / Answer
for second part
0.8 x90 = (m1+m2) (0.5)
m1+m2= 144kg
m1 =90 kg
m2 = 144-90 = 54 kg
charles mass is 54 kg
c) force = change in momentum/time
t = m(v1-v2)/F
t = 90(0.8 -0.5)/270 = 0.1s
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