A 500-kg sack of coal is dropped on a 2000-kg railroad flatcar which was initially moving at 3 m/s as shown.After the sack rests on the flatcar, the speed of the flatcar is:
A)0.6 m/s
B)1.2 m/s
C)1.8 m/s
D)2.4 m/s
E)3.6 m/s

Question

A 500-kg sack of coal is dropped on a 2000-kg railroad flatcar which was initially moving at 3 m/s as shown.After the sack rests on the flatcar, the speed of the flatcar is: 
A)0.6 m/s 
B)1.2 m/s 
C)1.8 m/s 
D)2.4 m/s 
E)3.6 m/s

Quizplus · Accepted Answer

The Answer of A 500-kg sack of coal is dropped on a 2000-kg railroad flatcar which was initially moving at 3 m/s as shown.After the sack rests on the flatcar, the speed of the flatcar is: 
A)0.6 m/s 
B)1.2 m/s 
C)1.8 m/s 
D)2.4 m/s 
E)3.6 m/s

A 500-Kg Sack of Coal Is Dropped on a 2000-Kg