The distance h a body will move in a free fall is expressed by the formula h= 1/2 gt2. If g=980 cm per sec2 and t=20 sec, the distance h is

Question

The distance h a body will move in a free fall is expressed by the formula h= 1/2 gt2. If g=980 cm per sec2 and t=20 sec, the distance h is

Answer 1

h = 1/2 gt²

^{h = 1/2 (980) (20) (20) = 196,000 cm}

Answer 2

h = .5gt² = .5(980)(20²⁾ = 196,000 cm