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The diagram above illustrates a ball of mass m sliding dow...
waec-2020 ssce-exam-2020 waec-physics-2020 physics
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The diagram above illustrates a ball of mass m sliding down a plank inclined at an angle of θ to the horizontal. The kinetic friction between the ball and the plank is F and acceleration of free fall is g

The net force on the ball along the plank is

A. mgsinθ + F

B. F - mgcosθ

C. mgsinθ - F

D. F + mgcosθ

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peter
Asked by peterrep:1.5K
University of Lagos Nigeria
31 August 2020

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