posted by .

a railroad handcar is moving along striaght, fricionless tracks. In each of the following cases the car initially has a total mass (car and contents of magniude 4.00 m/s^1. Find the final velocity of the car in each of the three cases.

A) a 40.0 kg mass is thown sideways out of the car with a velocity of magnitude 2.00 m/s^1 relative to the car.
B) a 40.0 kg mass is thrown backward (to the west)out of the car with a velocity of magnitude 4.00 m/s^1 relative to the initial motion of the car.
C) a 40.0 kg mass is thrown into the car with a velocity of the magnitude 6.00 m/s^1 relative to the ground and opposite in direction to the velocity of the car.

a) 4.00m/s
b)velocity of object is 0, so your answers should be (Mass of car * 4.00 )/(Mass of car - 40.0 kg)
c) 2 initial velocities this time, and the object is going the opposite direction. You should have [(Mass of Car * 4.00) - (40kg *6) ] / (Mass of car + 40kg)

a car of mass 500 is travelling at 24.a lion of 100kg drop onto the roof the car from the over handing branch show that the car will slow down to speed lot 20m/s.

Similar Questions

1. Psychics

A freight car is moving freely along a railroad track at 7.0 m/s and collides with a tanker car that is at rest. After the collision, the two cars stick together and continue to move down the track. What is the magnitude of the final …
2. physics

A railroad car containing explosive material is initially traveling south at a speed of 4.5 m/s on level ground. The total mass of the car plus explosives is 2.9 104 kg. An accidental spark ignites the explosive, and the car breaks …
3. physics

A railroad car with a mass of 1.81 104 kg moving at 3.04 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.32 m/s. What is the decrease …
4. physics

A railroad car with a mass of 2.35 × 104 kg moving at 3.90 m/s collides and joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.25 m/s. a) …
5. physics

A cannon is mounted on a railroad car. The cannon shoots a 1.75 kg ball with a muzzle velocity if 300 m/s. The cannon and the railroad car together have a mass of 4500 kg. if the ball, cannon, and railroad car are initially at rest, …
6. Physics

A railroad car with a mass of 12000 kg collides and couples with a second car of mass 18000 kg that is initially at rest. The first car is moving with a speed of 9 m/s before collision. If external forces can be ignored, what is the …
7. Physics

A railroad car with a mass of 12400 kg collides and couples with a second car of mass 18700 kg that is initially at rest. The first car is moving with a speed of 7.7 m/s prior to the collision. (a) What is the initial momentum of the …
8. Physics

A railroad car with a mass of 1.93 ✕ 104 kg moving at 3.12 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.04 m/s. What is the …
9. Physics

A railroad car with a mass of 2.33 × 104 kg moving at 3.71 m/s collides and joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.44 m/s.What …
10. Physics

A railroad car with a mass of 2.33 × 104 kg moving at 3.71 m/s collides and joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.44 m/s. a) …

More Similar Questions