Please help and show work

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Acaterpillar eats 1400\%1400% of its birth mass in one day. the caterpillar's birth mass is mm grams. which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? \

Right triangle abc has three sides with lengths ab= 119, bc = 169, ca= 120. find the value of cos c. hint: draw and label the triangle. the hypotenuse is always the longest.