Acceleration due to gravity is about 9.8 m/s²
So after every second, the speed increase by 9.8 m/s
After 1 second, the object would fall at a speed of 9.8 m/s
After 2 seconds the object would fall at a speed of 19.6 m/s
So after 4 seconds, the object is going to be at a speed of:
9.8 x 4 = 39.2 m/s
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<u>Answer</u>
39.2 m/s
There's no possible way to think about the validity of that equation until we know what the variables v, R, and g represent.
Reduce the effort needed to move a load vertically
Answer: The answer is 20.6060606061
16 divided by 6.6
Explanation: