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 B to 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.

A.21.14 m/s
B.18.03 m/s
C.17.20 m/s
D.15.00 m/s

http://cdn.ple.platoweb.com/PCAP-ASSETS-PROD/934dbed9328a483fa76b1e1582032367

Question

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 B to 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.

A.21.14 m/s 
B.18.03 m/s
C.17.20 m/s
D.15.00 m/s

http://cdn.ple.platoweb.com/PCAP-ASSETS-PROD/934dbed9328a483fa76b1e1582032367

anonymous · Answer

21.14 m/s