Three small children of mas 20.0 kg, 24.0 kg, and 16.0 kg, respectively, hold hands, as
shown, and are pulled across a smooth frozen pond by a larger boy on skates, who pulls
a horizontal rope being held by the first child. The skater pulls on the rope with a force
of 135 N. Calculate each of the following:
a. The acceleration of the skater
b. The force with which each pair of children must hold hands, to ensure that the
chain is not broken.