In the system shown in the figure, suppose the block has a mass of 2.6kg , the s

Question

In the system shown in the figure, suppose the block has a mass of 2.6kg , the spring has a force constant of 550N/m , and the coefficient of kinetic friction between the block and the floor is 0.19.

Part A Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2. Express your answers using two significant figures separated by a comma.

Part B Find the work done on the block by the spring and by friction if the block is moved directly from point A to point B. Express your answers using two significant figures separated by a comma.

In the system shown in the figure, suppose the block has a mass of 2.6kg , the spring has a force constant of 550N/m , and the coefficient of kinetic friction between the block and the floor is 0.19. Part A Find the work done on the block by the spring and by friction as the block is moved from point A to point B along path 2. Express your answers using two significant figures separated by a comma. Part B Find the work done on the block by the spring and by friction if the block is moved directly from point A to point B. Express your answers using two significant figures separated by a comma.

Explanation / Answer

Work done by the spring = 1/2*k*x^2 = 1/2*550N/m*(0.020)^2 =....N-m Work by friction = -µ*m*g*x = -0.15*3.1kg*9.8m/s^2*0.020m = -....N-m

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