a)By how much is the right spring compressed?(2 sig figs and cm) b)What is the n

Question

a)By how much is the right spring compressed?(2 sig figs and cm)

b)What is the net force on the block if it is moved 16 cm to the right of its equilibrium position.(2 sig figs and N)

The figure shows two springs attached to a block that can slide on a frictionless surface. In the block's equilibrium position, the left spring is compressed by x1=4.0cm.. a)By how much is the right spring compressed?(2 sig figs and cm) b)What is the net force on the block if it is moved 16 cm to the right of its equilibrium position.(2 sig figs and N)

Explanation / Answer

(a) Compression in the right spring is 4.0 cm (b) In the parallel combination of springs, the extension is same in both springs. Now the net force acting on the block is F = -(10 N/m)(16cm)-(20N/m)(16cm) = -(10 N/m)(0.16m)-(20N/m)(0.16m) = -4.8 N

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