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 1.1 m. a frisky squirrel makes three jumps in rapid succession. first, he leaps from the foot of one tree to a spot that is 0.9 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 to the other tree, now landing at a spot that is 2.3 m above the ground. what is the magnitude of the squirrel's displacement?

2.55 m.

Explanation:

Displacement is the shortest distance between initial and final position . In the present case this distance forms the hypotenuse of the triangle having base equal to 1.1 m and perpendicular equal to 2.3 m .

Hypotenuse H then

H² = 1.1² + 2.3²

H = 2.55 m.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.