Homework Help: physics

Posted by Anonymous on Thursday, December 8, 2011 at 3:02pm.

A particle, starting from point A in the drawing at a height h0 = 3.2 m, is projected down the curved runway. Upon leaving the runway at point B, the particle is traveling straight upward and reaches a height hf = 4.1 m above the floor before falling back down. Ignoring friction and air resistance, find the speed of the particle at point A.

physics - bobpursley, Thursday, December 8, 2011 at 3:33pm
Total energy at A= total energy at B
mg*3.2+ KE1=mg*4.1 + 0
solve for KE1, then solve for v1 from

v1= sqrt (KE1/mg)

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