Question: 3) A 1400 kg train car with initial velocity 30.00 km/h west collides with another train car with initial velocity 42.00 km/h east. The two

3) A 1400 kg train car with initial velocity 30.00 km/h west collides with another train car with initial velocity 42.00 km/h east.

The two train cars lock together and have a final velocity of 11.00 km/h east. Find the mass of the 2nd train car.

4) A net force of 35 N west acts on a 24 kg object (with initial velocity =3.7 m/s north) for 1.9 s. a) What is the object's final velocity?

b) What is the object's impulse?

Add the following vectors:

5) 23.5 m 75.0 W of N

38.2 m 39.0 S of W

49.6 m 280 RCS

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