Question

Figure shows a sphere of mass 500 g moving in a steady flow of air in x direction. The air stream
exerts an essentially constant force of 0.9 N on the sphere in x-direction. If at
1-0, the sphere is moving as shown, the time (1) required for the sphere to cross the y-axis again is
a) 1414 sec
b) 1.67 sec
e) 2.84 sec
d) 3.14 sec
30°
500 g

Answer 1

Answer:

D. 3.14 sec

30 degree

500g