Multiple Choice: A Ball Rolls Off the Edge & Forces on an Object

[memoi567]

1. A ball rolls of the edge of a horizontal roof at 10.0m/s. Two seconds later the speed of the ball will be...

a)9.80 b)10.0 c)19.6 d)29.6 e)none

2. Two forces of 10 N each act on an object. the angle between the forces is 120degrees. the magnitude of the resultant force on the object is___N.

a) 10 b) 14 c) 17 d) 20 e) 0

 

[HallsofIvy]

1. A ball rolls of the edge of a horizontal roof at 10.0m/s. Two seconds later the speed of the ball will be...

a)9.80 b)10.0 c)19.6 d)29.6 e)none

2. Two forces of 10 N each act on an object. the angle between the forces is 120degrees. the magnitude of the resultant force on the object is___N.

a) 10 b) 14 c) 17 d) 20 e) 0

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