1. What force, acting for 1.35 x 10^-3 s, will change the velocity of a 95-g baseball from 50.0 m/s eastward to 45.0 m/s westward?
2. A 65 kg ice skater traveling at 6.0 m/s runs head-on into an 85 kg skater traveling straight forward at 4.5 m/s. At what speed and in what direction do the ice skaters travel if they move together after the collision?
3. A 900 kg car moving west at 20 m/s hits a 1200 kg car moving north at 10 m/s. After the collision, the cars stick together in an inelastic collision. Calculate the exact direction and speed of the cars after the collision.
4. A 5.0 kg ball, moving at 2 m/s along the x-axis, collides with a 3.0 kg ball at rest. After the collision, the 5.0 kg ball has a velocity of 1 m/s and travels at an angle of 30° above the x-axis. What is the final velocity of the 3.0 kg ball?
and this other question is-
A 4.0 kg object traveling westward at 25 m/s hits a 15 kg object at rest. The 4.0 kg object bounces eastward at 8.0 m/s. What is the speed and direction of the 15 kg object?
Wouldn't that be 8.8 m/s eastward?
If someone smart could help me- id seriously appreciate it!!
2. A 65 kg ice skater traveling at 6.0 m/s runs head-on into an 85 kg skater traveling straight forward at 4.5 m/s. At what speed and in what direction do the ice skaters travel if they move together after the collision?
3. A 900 kg car moving west at 20 m/s hits a 1200 kg car moving north at 10 m/s. After the collision, the cars stick together in an inelastic collision. Calculate the exact direction and speed of the cars after the collision.
4. A 5.0 kg ball, moving at 2 m/s along the x-axis, collides with a 3.0 kg ball at rest. After the collision, the 5.0 kg ball has a velocity of 1 m/s and travels at an angle of 30° above the x-axis. What is the final velocity of the 3.0 kg ball?
and this other question is-
A 4.0 kg object traveling westward at 25 m/s hits a 15 kg object at rest. The 4.0 kg object bounces eastward at 8.0 m/s. What is the speed and direction of the 15 kg object?
Wouldn't that be 8.8 m/s eastward?
If someone smart could help me- id seriously appreciate it!!