4. A block of mass 1.94 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding
Posted: Mon May 16, 2022 3:24 pm
4. A block of mass 1.94 kg is placed on a frictionless floor and
initially pushed northward, whereupon it begins sliding with a
constant speed of 5.33 m/s. It eventually collides with a second,
stationary block, of mass 4.89 kg, head-on, and rebounds back to
the south. The collision is 100% elastic. What will be the speeds
of the 1.94-kg and 4.89-kg blocks, respectively, after this
collision?
3.03 m/s and 2.30 m/s
2.78 m/s and 2.67 m/s
1.61 m/s and 2.49 m/s
2.30 m/s and 3.03 m/s
initially pushed northward, whereupon it begins sliding with a
constant speed of 5.33 m/s. It eventually collides with a second,
stationary block, of mass 4.89 kg, head-on, and rebounds back to
the south. The collision is 100% elastic. What will be the speeds
of the 1.94-kg and 4.89-kg blocks, respectively, after this
collision?
3.03 m/s and 2.30 m/s
2.78 m/s and 2.67 m/s
1.61 m/s and 2.49 m/s
2.30 m/s and 3.03 m/s