A hand-driven tire pump has a piston with a 2.50 cm diameter and a maximum stroke of 30 cm. how much work do you do in one stroke if the average gauge pressure is 2.40×105 N.m – 2?

Select one:
a. 141 J
b. 4.5×107 J
c. 35.3 J
d. 1.41 ×108 J

2 answers

force*distance=pressure*area*distance=
2.40E5Pa*PI( .0125)^2*.3 = ?
35.3J