At an instant when a particle of mass 50 g has an acceleration of 80 m/s2 in the positive x direction, a 75-g particle has an acceleration of 40 m/s2 in the positive y direction. What is the magnitude of the acceleration of the center of mass of this two-particle system at this instant?
a. 60 m/s2
b. 56 m/s2
c. 40 m/s2
d. 50 m/s2
e. 46 m/s2
c
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a. -8 b. -4 c. -2 d. -6 e. 30
Where groundwater discharges to a stream, the elevation of the water table next to the stream
A) is lower than the surface of the stream. B) is the same as the surface of the stream. C) is higher than the surface of the stream. D) Not enough information given