Question

an object is thrown up from the top of a building with an initial velocity of 30m/s , if it hits the ground after 7seconds find the height of the building​

Answer 1

Answer:

35 m.

Explanation:

- H = ut - gt²/2 = 30x7 - 490/2 = 210 - 245 = -35

H = 35 m.

Answer 2

is it going up then coming down