A cannon is fired horizontally from atop a 40.0 m tower. The cannonball travels 175 m horizontally before it strikes the ground. With what velocity did the ball leave the muzzle?

Answer 1

How long does it take to fall 40 m?

h=1/2 g t^2
solve for t.

then, velocity= 175/time

Answer 2

is g 9.8 or -9.8?

Answer 3

-9.8

Answer 4

Actually g is 9.8 if it were to be acceleration then it would be -9.8

Answer 5

9.80