A hydraulic press has a large circular piston of radius 0.8m and a circular plunger...
PHYSICS
JAMB 1995
A hydraulic press has a large circular piston of radius 0.8m and a circular plunger of radius 0.2m. A force of 500N is exerted by the plunger. Find the force exerted on the piston
- A. 8000N
- B. 4000N
- C. 2000N
- D. 31N
Correct Answer: A. 8000N
Explanation
Pressure on piston = pressure on the plunger
\(\frac{500}{\pi\ \times\ 0.2 \times\ 0.2}\) = \(\frac{F}{\pi\ \times\ 0.8 \times\ 0.8}\)
F = 8000N
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