Posted by **sarah** on Saturday, November 15, 2008 at 1:01pm.

a boy of mass 40kg is sliding down the spiral slide at a constant speed such that his position is measured by

theta=(0.7t) rad

and

z=(-0.5t) m

where t is in seconds. How do you find the components of forces Fr, Ftheta and Fz which the slide exerts on the boy at the instant when t=2s. Neglect the size of the boy.

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