1. ssm Two trees have
perfectly straight trunks and are both growing perpendicular to the flat
horizontal ground beneath them. The sides of the trunks that face each other
are separated by 1.3 m. A frisky squirrel makes three jumps in rapid
succession. First, he leaps from the foot of one tree to a spot that is 1.0 m
above the ground on the other tree. Then, he jumps back to the first tree,
landing on it at a spot that is 1.7 m above the ground. Finally, he leaps
back to the other tree, now landing at a spot that is 2.5 m above the ground.
What is the magnitude of the squirrel’s displacement?
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