A girl is sledding down a slope that is inclined at 30° with respect to the horizontal. The wind is aiding the motion by providing a steady force of 138 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 86.5 kg, and the coefficient of kinetic friction between the snow and the runners of the sled is 0.218. How much time is required for the sled to travel down a 150-m slope, starting from rest?
A girl is sledding down a slope that is inclined at 30° with respect to the horizontal. The wind is aiding the motion by providing a steady force of 138 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 86.5 kg, and the coefficient of kinetic friction between the snow and the runners of the sled is 0.218. How much time is required for the sled to travel down a 150-m slope, starting from rest?
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Transcribed Image Text:A girl is sledding down a slope that is inclined at 30° with respect to the horizontal. The wind is aiding the motion by providing a steady
force of 138 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 86.5 kg, and the coefficient of
kinetic friction between the snow and the runners of the sled is 0.218. How much time is required for the sled to travel down a 150-m
slope, starting from rest?
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