A) \[3\,m{{s}^{-2}}\]
B) \[5\,m{{s}^{-2}}\]
C) \[2.5\,m{{s}^{-2}}\]
D) \[3.5\,m{{s}^{-2}}\]
E) \[4\,m{{s}^{-2}}\]
Correct Answer: B
Solution :
Resultant acceleration, \[a=\sqrt{a_{c}^{2}+a_{t}^{2}}\] \[=\sqrt{\left( \frac{{{v}^{2}}}{r} \right)+{{(3)}^{2}}}=\sqrt{{{\left( \frac{20\times 20}{100} \right)}^{2}}+9}\] \[=\sqrt{16+9}=5\,m{{s}^{-2}}\]
You need to login to perform this action.
You will be redirected in
3 sec
