If the child has a mass of 10.7 kg, calculate the magnitude of the force in newtons the mother exerts on the child under the following conditions. (b) The elevator accelerates upward at 0.810 m/s. 108.64 x Refer to your answer to part (a). N Calculate the ratio of this force to the weight of the child. force child's weight = 1.08 (c) The elevator moves upward at a constant speed. 100.64 Refer to your answer to part (a). N Calculate the ratio of this force to the weight of the child. force child's weight = 1 (d) The upward bound elevator decelerates at 2.40 m/s. 76.74 Refer to your answer to part (a). N Calculate the ratio of this force to the weight of the child. force child's weight = 1 Check the values you have used for the force and weight.