Answer
Verified
436.2k+ views
Hint: The pressure due to applied force is the ratio of magnitude of force and the area of the cross section on which the force is applied.
\[{\text{pressure = }}\dfrac{{{\text{force}}}}{{{\text{area}}\,{\text{of}}\,{\text{cross}}\,{\text{section}}}}\]
Complete step by step answer:
According to Newton’s law of gravitation, the gravitational force exerted on the car of mass m is given by the equation,
\[F = mg\]
Here, g is acceleration due to gravity.
The pressure exerted on the smaller piston of the hydraulic lift is the ratio of force exerted on the car to the area of the cross section of the smaller piston.
Therefore,
\[P = \dfrac{F}{A}\]
\[ \Rightarrow P = \dfrac{{mg}}{A}\]
Substitute \[3500\,kg\] for m, \[9.8\,m/{s^2}\] for g and \[500\,c{m^2}\] for A in the above equation.
\[P = \dfrac{{\left( {3500\,kg} \right)\left( {9.8\,m/{s^2}} \right)}}{{\left( {500\,c{m^2}} \right)\left( {\dfrac{{{{10}^{ - 4}}\,{m^2}}}{{1\,c{m^2}}}} \right)}}\]
\[ \Rightarrow P = \dfrac{{34300\,kg\,m/{s^2}}}{{500 \times {{10}^{ - 4}}\,{m^2}}}\,\]
\[\therefore P = 6.86 \times {10^5}\,N/{m^2}\]
Therefore, the pressure experienced by the smaller piston is \[6.86 \times {10^5}\,N/{m^2}\].
Note:
The weight of the object is the gravitational force exerted on the object. Sometimes students misunderstand between the mass and the weight of the object. 3500 kg is the mass of the car and not the weight. Therefore, you need to calculate the weight of the car by multiplying its mass by the acceleration due to gravity. Also, \[1\,cm = {10^{ - 2}}\,m\], therefore, \[1\,c{m^2} = {\left( {{{10}^{ - 2}}\,m} \right)^2} = {10^{ - 4}}\,{m^2}\].
\[{\text{pressure = }}\dfrac{{{\text{force}}}}{{{\text{area}}\,{\text{of}}\,{\text{cross}}\,{\text{section}}}}\]
Complete step by step answer:
According to Newton’s law of gravitation, the gravitational force exerted on the car of mass m is given by the equation,
\[F = mg\]
Here, g is acceleration due to gravity.
The pressure exerted on the smaller piston of the hydraulic lift is the ratio of force exerted on the car to the area of the cross section of the smaller piston.
Therefore,
\[P = \dfrac{F}{A}\]
\[ \Rightarrow P = \dfrac{{mg}}{A}\]
Substitute \[3500\,kg\] for m, \[9.8\,m/{s^2}\] for g and \[500\,c{m^2}\] for A in the above equation.
\[P = \dfrac{{\left( {3500\,kg} \right)\left( {9.8\,m/{s^2}} \right)}}{{\left( {500\,c{m^2}} \right)\left( {\dfrac{{{{10}^{ - 4}}\,{m^2}}}{{1\,c{m^2}}}} \right)}}\]
\[ \Rightarrow P = \dfrac{{34300\,kg\,m/{s^2}}}{{500 \times {{10}^{ - 4}}\,{m^2}}}\,\]
\[\therefore P = 6.86 \times {10^5}\,N/{m^2}\]
Therefore, the pressure experienced by the smaller piston is \[6.86 \times {10^5}\,N/{m^2}\].
Note:
The weight of the object is the gravitational force exerted on the object. Sometimes students misunderstand between the mass and the weight of the object. 3500 kg is the mass of the car and not the weight. Therefore, you need to calculate the weight of the car by multiplying its mass by the acceleration due to gravity. Also, \[1\,cm = {10^{ - 2}}\,m\], therefore, \[1\,c{m^2} = {\left( {{{10}^{ - 2}}\,m} \right)^2} = {10^{ - 4}}\,{m^2}\].
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Which are the Top 10 Largest Countries of the World?
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Difference Between Plant Cell and Animal Cell
Give 10 examples for herbs , shrubs , climbers , creepers
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE