The accelerometer in a certain video game controller is constructed as shown in

Question

The accelerometer in a certain video game controller is constructed as shown in (Figure 1) . A block made of material that is an electrical conductor is grounded by a small stretched spring and is constrained to sliding along a rail. A nonconducting, positively charged block is fixed in position on the rail. When the magnitude of the electric force between the blocks is 0.160 N , the spring makes a 45.0 angle with the wall and is stretched 3.00 mmfrom its equilibrium position.

What is the spring constant? Ignore friction.

Explanation / Answer

The Figure is missing but still I am solving the question somewhat imagining the figure. So please feel free to ask if any doubt

The force between the charges stretches the spring.
F = K*x* cos 45

here:
F = 0.16 N
x = 3mm = 0.003 m

putting values:
F = K*x* cos 45
0.16 = K* 0.003 * cos 45
K = 75.4 N/m

Answer: 75.4 N/m

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