*15-112. A toboggan and rider, having a total mass of 150 kg, enter horizontally tangent to a 90° circular curve with a velocity of va = 70 km/h. If the track is flat and banked at an angle of 60°, determine the speed vg and the angle e of “descent," measured from the horizontal in a vertical x-z plane, at which the toboggan exists at B. Neglect friction in the calculation. VA = 70 km/h 60° TA 60 m 60° r = 57 m 55 m 90° 55 m

Question
*15-112. A toboggan and rider, having a total mass of
150 kg, enter horizontally tangent to a 90° circular curve
with a velocity of va = 70 km/h. If the track is flat and
banked at an angle of 60°, determine the speed vg and the
angle e of “descent," measured from the horizontal in a
vertical x-z plane, at which the toboggan exists at B. Neglect
friction in the calculation.
VA = 70 km/h
60°
TA
60 m
60°
r = 57 m
55 m 90°
55 m

Image Transcription

*15-112. A toboggan and rider, having a total mass of 150 kg, enter horizontally tangent to a 90° circular curve with a velocity of va = 70 km/h. If the track is flat and banked at an angle of 60°, determine the speed vg and the angle e of “descent," measured from the horizontal in a vertical x-z plane, at which the toboggan exists at B. Neglect friction in the calculation. VA = 70 km/h 60° TA 60 m 60° r = 57 m 55 m 90° 55 m

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Kinematics

Work,energy and power