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An object of mass 1.7 kg starts from rest and slides down an inclined plane 80 cm long in 0.51 s. What net force is acting on the mass along the incline?

2007-09-18 00:42:43 · 2 answers · asked by mmcnb1987 1 in Science & Mathematics Physics

2 answers

You may use the formula:
S = 0.5a*t^2,
with S = 0.8m, t = 0.51s, you get:
a = 2S/t^2 = 1.6/0.51^2 = 6.15 (m/s^2)
Now, F = ma = 6.15*1.7 ≈ 10 (N)
which is provided by partial gravitational force.

2007-09-20 20:22:14 · answer #1 · answered by Hahaha 7 · 0 0

gravity is constant and the distasnce and agle have nothingto do with the net force . Simple answer , but try it yourself .

2007-09-18 00:50:35 · answer #2 · answered by newkirkb52 3 · 0 0

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