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