A 0.786 kg bead slides on a curved wire, starting from rest at point A as shown

Question

A 0.786 kg bead slides on a curved wire, starting from rest at point A as shown in the figure.

A)If the wire is frictionless, find the speed of the bead at B. Answer in units of m/s

B) Find the speed of the bead at C. Answer in units of m/s

A 0.786 kg bead slides on a curved wire, starting from rest at point A as shown in the figure. The acceleration of gravity is 9.8 m/s2 . A)If the wire is frictionless, find the speed of the bead at B. Answer in units of m/s B) Find the speed of the bead at C. Answer in units of m/s

Explanation / Answer

At B:

mgh1 = 0.5*mv^2

So, v = 10.9 m/s

At C

mg(h1 - h2) = 0.5 *m v^2

v = 8.56 m/s

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