Question

A bullet is fired horizontally with a velocity of 80m/s. During the first second –

• A. It falls 9.8 m
• B. It falls $\frac{80}{9.8}$m
• C. It does no fall at all
• D. It falls 4.9 m

Answer 1

Answer: (D)

It falls 4.9 m

Answer 2

In y-direction

S = ut + $\frac { 1 } { 2 }$ at²

**–**h = 0 + $\frac { 1 } { 2 }$ (–9.8)(1)²

h = 4.9 m