Question

The muzzle velocity of a bullet fired from a new rifle is 100 m/s. Neglecting air resistance, at the end of one second a bullet fired straight up into the air will have traveled a distance of:_____a. 100mb. 4.9mc. (100+4.9)md. (100-4.9)me. None of these

Answer 1

(100-4.9)m

Step-by-step explanation:

Answer 2

C. (100+4.9)m

Step-by-step explanation:

u = 100m/s, t = 1 sec, g = 9.8m/s^2

s = ut + 1/2gt^2

s = 100×1 + 1/2×9.8×1^2 = 100+4.9

s = (100+4.9)m