Multiple Choice
Two objects are moving in the xy-plane. No external forces are acting on the objects. Object A has a mass of 3.2 kg and has a velocity = (2.3 m/s)
+ (4.2 m/s)
and object B has a mass of 2.9 kg and has a velocity
= (-1.8 m/s)
+ (2.7 m/s)
. Some time later, object A is seen to have a velocity
' = (1.7 m/s)
+ (3.5 m/s)
. What is the velocity of object B at that instant?
A) (-3.3 m/s) + (10 m/s)
B) (3.3 m/s) + (-10 m/s)
C) (1.1 m/s) + (-3.5 m/s)
D) (3.3 m/s) + (10 m/s)
E) (-1.1 m/s) + (3.5 m/s)
Correct Answer:

Verified
Correct Answer:
Verified
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