A roller coaster, shown in the figure ( h a = 30 m, h b = 28 m, h c = 9 m, ) is

Question

A roller coaster, shown in the figure (ha = 30 m, hb = 28 m, hc = 9 m, ) is pulled up to point 1 where it and its screaming occupants are released from rest. Assuming no friction, calculate the speed at points 2, 3, 4.
_____________m/s (at point 2)
_____________m/s (at point 3)
_____________m/s (at point 4)

A roller coaster, shown in the figure (ha = 30 m, hb = 28 m, hc = 9 m, ) is pulled up to point 1 where it and its screaming occupants are released from rest. Assuming no friction, calculate the speed at points 2, 3, 4. _____________m/s (at point 2) _____________m/s (at point 3) _____________m/s (at point 4)

Explanation / Answer

Without friction,
Va = 0+
Vb = sqrt((2)(9.80665)(30)) = 24 m/s
Vc = sqrt((2)(9.80665)(9)) = 13.286 m/s

Vd =sqrt((2)(9.80665)(28)) = 23.43 m/s

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