Akey falls from a bridge that is 45 m above the water. the key falls straight down and lands in a model boat traveling at a constant velocity of 3.5 m/s. calculate the distance the boat was from the point of impact when the key was released.

Let the key is free falling, therefore from equation of motion

.

Take initial velocity, u=0, so

.

As velocity moves with constant velocity of 3.5 m/s, therefore we can use formula

From above substituting t,

.

Now substituting all the given values and g = 9.8 m/s^2, we get

.

Thus, the distance the boat was from the point of impact when the key was released is 10.60 m.

think its the third option

the journeys of marquette, joliet and la salle a) new france expand.

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this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada