Question

A bike and rider of total mass 75.0 kg moving at a velocity of 30 m/s to the right

collides with a skater of mass 60,0 kg moking at a velocity of 6.0 m/s to the left.
After they collide, the skater has a velocity of O m/s. What is the final velocity of the
bike and rider?
O A. O m/s
O B. 1.8 m/s to the left
O C. 3.0 m/s to left
O D. 1.8 m/s to the right

Answer 1

`(75.0 * 30) + (60.0 * 6.0) = (75.0 * V) + (60.0 * 0) \\ 2250 + 360 = 75V \\ 75V = 2610 \\ V = 34.8 \: m {s}^( - 1)`