Ablock with mass m = 5.6 kg is attached to two springs with spring constants kleft = 35 n/m and kright = 52 n/m. the block is pulled a distance x = 0.21 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)?

the magnitude of the net force on the block is 18.27 N

Explanation:

given information:

mass, m = 5.6 kg

spring constant kleft, = 35 N/m

spring constant kright, = 52 N/m

x = 0.21 m

the magnitude of the net force on the block. F

F = - kx

  = - (+) x

  = - (35+52) (0.21)

  = - 18.27 N

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