A) \[~4.9\text{ }m/{{s}^{2}}\]
B) \[~2.45\text{ }m/{{s}^{2}}\]
C) \[~1.4\text{ }m/{{s}^{2}}\]
D) \[~9.5\text{ }m/{{s}^{2}}\]
Correct Answer: C
Solution :
Acceleration \[=\frac{({{m}_{2}}-{{m}_{1}})}{({{m}_{2}}+{{m}_{1}})}g\] \[=\frac{4-3}{4+3}\times 9.8=\frac{9.8}{7}=1.4\,m/{{\sec }^{2}}\]You need to login to perform this action.
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