D Question 20 4 pts of Linear Momentum. Two bump cars move toward each other col
ID: 1863794 • Letter: D
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D Question 20 4 pts of Linear Momentum. Two bump cars move toward each other colliding head-on on a frictionless track. Car A has a mass of 150.0 kg, and car B has a mass of 130.0 kg: both cars move with an initial speed of 11.0 m/s (approaching each other). After they collide, Car B moves away with a velocity whose x component is 15.0 m/s. What is the magnitude of the final velocity of Car A (in m/s)? Note: Round your final answer to 3 sig. fig. Do NOT write units. DQuestion 21 4 pts Pascal's Principle. Suppose the hydraulic has a small cylindrical piston with diameter 11.0 cm and a larger piston with radius 21.0 cm. The mass of a car placed on the larger piston is 1020 kg. Assuming the two pistons are originally at the same height, what force (in Newtons) must be applied to the small piston to lift the car? Hint: Weight mg. Note: Round your final answer to 3 sig. fig. Do NOT write units.Explanation / Answer
21.
From Pascal's law
F is directly proportional to area A
So
F2/F1= A2/A1
F2= F1* (r2/r1)^2
F2= 1020*9.8( 5.5/21)^2
F2= 685.77 N
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According to chegg guidelines we can solve one problem at a time ao plz reattach your other problems separately..goodluck
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