Two children, Raffi and John, sitting on sleds tied together with a massless rope, are being dragged across a frozen river b) their playful Siberian husky Rex who is supplying a 112−N horizontal force (see figure below). The coefficient of friction between the sleds and the ice is 0.02, the combined mass of Raffi and his sled is 41.5 kg, and the combined mass of John and his sled is 56.5 kg. (Assume Raffi is the child on the left and John is the child on the right.) (b) What is the acceleration of the system? (Enter the magnitude only.) m/s2 (c) What is the tension FT in the rope connecting the two sleds? N
A mom is pulling her son and daughter who are sitting in two sleds that are connected by a rope. I he mass of the girl and sled 1 is 59 kg, the mass of the boy and sled 2 is 63 kg. The mom is pulling so that the sleds accelerate at a rate of 0.32 m/s2. The coefficient of kinetic friction between the sleds and the ice is 0.12. a) Draw a free-body diagram for the system (both kids and sleds combined). [THINK - 2 marks] b) Determine the force with which the mom is pulling the sleds. [APP - 3 marks]
Two children, Raffil and John, sitting on sleds tied together with a rope, are being dragged across a frozen river by their lonely Siberian husky Rex attached with the hamess and rope as shown in the figure. The husky is pulling happily with a net horizontal force of 112 N from its harness. The coefficient of kinetic friction between the sleds and the ice is 0.08, the combined mass of Raffi and his sled is 42.0 kg, and the combined mass of John and his sled is 51.0 kg. Assume all forces are horizontal, and the two ropes and the harness are of negligible mass, and all ropes are tight. (i) What is the acceleration of Rex? (ii) What is the tension T in the rope connecting the two sleds? (iii) What is the tension in the rope connecting the sled of John and Rex? If this question cannot be answered, why? (iv) Will the husky be able to pull the sleds with the same magnitude of force from its harness if the frozen river starts to melt resulting in a slippery surface? Explain the reason of your answer.
The sled dog in figure drags sleds A and B across the snow. The coefficient of friction between the sleds and the snow is 0.08. (Figure 1) Figure 1 of 1 Part A If the tension in rope 1 is 190 N, what is the tension in rope 2? Express your answer to two significant figures and include the appropriate units. T2 = Value Units