An object starts from rest and falls freely. What is the speed of the object at the end of 3.00 seconds?A 9.81 m/sB 19.6 m/sC 29.4 m/sD 88.2 m/s
Question
An object starts from rest and falls freely. What is the speed of the object at the end of 3.00 seconds?A 9.81 m/sB 19.6 m/sC 29.4 m/sD 88.2 m/s
Solution
The speed of a falling object can be calculated using the formula v = gt, where v is the final velocity, g is the acceleration due to gravity (9.81 m/s² on Earth), and t is the time the object has been falling.
In this case, the object has been falling for 3.00 seconds. So, we substitute these values into the formula:
v = 9.81 m/s² * 3.00 s = 29.43 m/s
So, the speed of the object at the end of 3.00 seconds is approximately 29.4 m/s. Therefore, the correct answer is C. 29.4 m/s.
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