A block with mass m = 4.3 kg is attached to two springs with spring constants kleft = 34 N/m and kright = 57 N/m. The b... ... The block is pulled a distance x = 0.22 m to the left of its equilibrium position and released from rest. 1). What is the magnitude of the net force on the block (the moment it is released)?

Respuesta :

Answer:

20.02 N

Explanation:

The force the spring exerts is given by a law called Hooke's law

[tex]F=kx[/tex]

where

k = Spring constant

x = Displacement

[tex]k_l[/tex] = 34 N/m

[tex]k_r[/tex] = 57 N/m

Here the block is pulled 0.22 to the left so it will also move 0.22 m to the right

So, the total force is given by

[tex]F=k_lx+k_rx\\\Rightarrow F=34\times 0.22+57\times 0.22\\\Rightarrow F=20.02\ N[/tex]

The magnitude of the net force on the block is 20.02 N

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