A football of radius R is kept on a hole of radius r (r < R) made on a plank kept horizontally. One end of the plank is now lifted so that it gets tilted making an angle theta from the horizontal as shown in the figure below. The maximum value of theta so that the football does not start rolling down the plank satisfies (figure is schematic and not drawn to scale)
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Answered by
0
Answer:
mag aral ka kasi Ng mabuti wag puro ml Wala ma matututunan sa laro
Explanation:
Yun lang
Answered by
0
Answer:
Correct option is
A
sinθ=
R
r
Write the torque balancing equations for the components of weight:
mgsinθ
R
2
−r
2
=mgcosθr
tanθ=
R
2
−r
2
r
sinθ=
R
r
Explanation:
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