A) \[\sqrt{29}N\]
B) 29 N
C) \[26\,N\]
D) \[\sqrt{89}\,N\]
Correct Answer: C
Solution :
\[\text{As }\vec{v}=5t\,\hat{i}+2t\,\hat{j}\]\ \[\vec{a}={{a}_{x}}\hat{i}+{{a}_{y}}\hat{j}\]\[=5\hat{i}+2\hat{j}\] \[\vec{F}=m{{a}_{x}}\hat{i}+m(g+{{a}_{y}})\hat{j}\] \ \[|\vec{F}|=m\sqrt{a_{x}^{2}+{{(g+{{a}_{y}})}^{2}}}=26\ N\]You need to login to perform this action.
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