Question 4 5 A Block Of Mass 1 89 Kg Is Placed On A Frictionless Floor And Initially Pushed Northward Whereupon It 1 (49.18 KiB) Viewed 65 times
Question 4 5 A Block Of Mass 1 89 Kg Is Placed On A Frictionless Floor And Initially Pushed Northward Whereupon It 2 (51.4 KiB) Viewed 65 times
Question 4 -- /5 A block of mass 1.89 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 5.20 m/s. It eventually collides with a second, stationary block, of mass 3.44 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.89-kg and 3.44-kg blocks, respectively, after this collision? 12.44 m/s and 2.60 m/s m 2 m 0.76 m/s and 2.06 m/s 3 1.51 m/s and 3.69 m/s / 4 3.69 m/s and 1.51 m/s
Question 5 --/5 Same situation as before. This time its a block of mass 1.65 kg sliding with a constant velocity of 4.70 m/s to the north, which collides 100% elastically with a second, stationary block, of mass 3.90 kg, head-on, and rebounds back to the south, eventually colliding 100% elastically with a wall and rebounding northward. It then overtakes the second block, which is still moving north as a result of the first collision. What will be the speeds of the 1.65-kg and 3.90-kg blocks, respectively, after their SECOND collision with one another? 3.97 m/s and 1.18 m/s 2 2.72 m/s and 4.31 m/s // 0.23 m/s and 2.75 m/s 4 0.38 m/s and 7.43 m/s
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