1. Weigh the block, equate the weight to mg; where g = 9.81 m/s2. Then,
Find the angle between the incline and the horizontal surface the incline is kept on, now weight is given by mgsin.
2. Force F on the mass m connected with the spring, is given by:
F = -kFn
Where Fn is the normal force on the mass, i.e. the weight of the mass, w = mg where g is acceleration due to gravity, 9.81 m/s2
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