A) A car reaching a speed of \[10\text{ }m\text{ }{{s}^{-1}}\]in 2 s.
B) A car reaching a speed of \[20\text{ }m\text{ }{{s}^{-1}}\] in 5 s.
C) A car reaching a speed of \[30\text{ }m\text{ }{{s}^{-1}}\]in 10 s.
D) A car reaching a speed of \[40\text{ }m\text{ }{{s}^{-1}}\] in 20 s.
Correct Answer: D
Solution :
Average acceleration \[=\frac{Final\text{ }velocity-Initial\text{ }velocity}{Change\text{ }in\text{ }time}\]You need to login to perform this action.
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