669
15 m/s
B
The velocity of a train relative to the ground is represented by the distance from A to B in the diagram. The velocity of a ball thrown inside the
train at an angle of 66 relative to the train is represented by the distance from Bto C What is the distance from A to c(the velocity of the ball
relative to the ground), correct to two decimal places? Assume that all the points in the diagram lie in the same plane.
ОА
21.14 m/s
OB.
18.03 m/s
17.20 m/s
OD
15.00 m/s
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