Is this the answer to this question?

  • Thread starter Thread starter predentalgirl1
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on a physics problem involving a 22-pound baby on a piston connected to a larger platform. Using the formula F = P × A, the pressure exerted by the baby is calculated to be 1052.65 Pa, allowing for the determination of the weight of the car that can be lifted, which is approximately 977.95 N (99.79 kg). Additionally, it is established that when the baby's piston is fully compressed, the car will be raised by 1 foot, maintaining the volume of liquid constant across both pistons.

PREREQUISITES
  • Understanding of basic physics concepts, particularly pressure and force calculations.
  • Familiarity with unit conversions, including pounds to kilograms and square feet to square meters.
  • Knowledge of the relationship between pressure, force, and area in hydraulic systems.
  • Basic algebra skills for solving equations related to volume and height.
NEXT STEPS
  • Study the principles of Pascal's Law in fluid mechanics.
  • Learn about hydraulic systems and their applications in engineering.
  • Explore advanced pressure calculation techniques in different fluid scenarios.
  • Investigate the implications of fluid dynamics in real-world applications, such as car lifts.
USEFUL FOR

Students in physics, engineers working with hydraulic systems, and anyone interested in understanding the mechanics of force and pressure in practical applications.

predentalgirl1
Messages
61
Reaction score
1
1. (a) If a 22 pound baby sits atop a 1 ft^2 piston that is connected to a 10 ft^2 platform via sealed, water filled pipes, how heavy and massive of a car can the baby's weight lift (answer in pounds, Newtons, and Kilograms)?

(b) If the baby's initial height on the piston is 10 ft, how high will the car be raised after the baby's piston is completely compressed?




2. F=P/A



3. 1 foot = 0.3048 meters
1 ft² = 0.09290304 m²
10ft² = 0.9290304 m²

1 pound = 0.45359237 kilograms
22 pounds = 9.97903214 Kg

a) Pressure = Force / area
Force = Weight of baby = 9.97903214 x 9.8 = 97.79451497 N
Area = 0.09290304
Pressure = 97.79451497 / 0.09290304 = 1052.651398 Pa
Pressure in both piston the same .
1052.651398 = Force / Area
1052.651398 = Weigh of car / 0.9290304
Weight of car = 977.9451497 N
mass = 99.7903214 Kg .

b)
Volume of Liquid is same in both Pistons
V = A x Height
1ft²x10ft = X x 10ft²
X=1 ft .
 
Physics news on Phys.org
Your concept is abslolutely correct.
 

Similar threads

Replies
15
Views
1K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
3
Views
1K
Replies
8
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 15 ·
Replies
15
Views
3K
  • · Replies 3 ·
Replies
3
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K