Yoongirine09viz
Answered

A stone is thrown from a 5 m high window with an initial velocity of 45 m/s.

a. How long will the stone reach the ground?

b. How far on the ground will it reach?​

Sagot :

Redjguilaran06viz

Answer:

a.) 9sec.

b.)396.9m

Explanation:

a.)

t=s/d

t=45 m/s ÷5 m

t=9 sec.

b.)

d=1/2gt²

d=1/2(9.8 m/s)(9 sec.)²

d=1/2(9.8 m/s)(81 sec.)

d=1/2(793.8 m)

d=396.9 m