In a garage jack

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Fluids · Fluids

Problem

In a garage jack, the large piston (area

0.50\,\text{m}^2

) is situated

0.40\,\text{m}

higher than the small piston (area

0.010\,\text{m}^2

). The connecting fluid is oil of density

900\,\text{kg\,m}^{-3}

. What minimum force on the small piston is required to raise a

15\,000\,\text{N}

load placed on the large piston? (Take

g = 9.8\,\text{m\,s}^{-2}

.) (a)

300\,\text{N}

(b)

335\,\text{N}

(c)

265\,\text{N}

(d)

368\,\text{N}