Question

For a projectile launched horizontally at 100 ft/s from a height of 400 ft calculate the range in customary units?

Answer 1

well, if we know how long it takes to drop down 400 ft, then the distance traveled is just t 100 cos(a)

Answer 2

pfft, a = 0 so thats just 100t

Answer 3

we dont have to use gravitational acceleration at all ? 9.8m/s?

Answer 4

assuming its on earth yes

solve 0 = -4.9 t^2 + 400

Answer 5

a as in angle ... not acceleration

Answer 6

t=sqrt(400/4.9)

soo 100sqrt(400/4.9)