I need help... I don't know where to begin to answer this question. We are working in force/work ok... This is the question: A pole vaulter weighing 175 lbs leaps 16 ft over a bar . How much work is done?
To determine the amount of work done by the pole vaulter, we need to use the formula:
Work = Force x Distance
First, we need to convert the weight of the pole vaulter from 175 lbs to newtons (N), as the standard unit for force is Newtons. One pound is approximately equal to 4.45 N.
So, the weight of the pole vaulter in Newtons is calculated as follows:
Weight = 175 lbs * 4.45 N/lb
Next, we need to calculate the distance covered by the pole vaulter. We are given that the pole vaulter leaps 16 ft over a bar. However, the standard unit of length is meters. To convert feet to meters, we can use the conversion factor:
1 ft = 0.3048 m
Thus, the distance covered in meters is calculated as:
Distance = 16 ft * 0.3048 m/ft
Now that we have the weight and distance in the correct units, we can calculate the work done:
Work = Weight * Distance
Finally, substitute the calculated weight and distance values into the formula to find the work done by the pole vaulter.