A) 0.7 m/s
B) 0.5 m/s
C) m/s
D) between 0.7 and 0.1 m/s
Correct Answer: B
Solution :
There will be no change in the velocity along horizontal direction, so \[{{v}_{x}}=0.4\text{ }m/s.\] Velocity in perpendicular direction \[{{v}_{y}}=0+0.15\times 2\] \[=0.3\text{ }m/s\] So, resultant velocity, \[v=\sqrt{v_{x}^{2}+y_{y}^{2}}\] \[=\sqrt{{{(0.4)}^{2}}+{{(0.3)}^{2}}}\] \[=0.5\text{ }m/s\]
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