Question

A golf ball is hit off of the roof of a building into an open lot next to the building. The ball is hit so that it launches straight horizontally from the roof, at a launch speed of $25m/s$. If the golf ball lands on the ground $4$ seconds after it was hit, how far away from the building (measured horizontally) does it land?

• A. $6.25meters$
• B. $100meters$
• C. $180meters$
• D. This question cannot be answered without knowing the height of the building

Answer 1

Answer: (B)

$100meters$

Given : $u=25$ $m/s$ $t=4$ s

Horizontal distance covered by the ball $x=ut=25\times 4=100$ m