Question

question 2 of 10
a marble is flicked horizontally off a desk with a speed of 3.1 m/s. if it takes the marble 0.8 seconds to hit the ground, how far from the desk does it land?
a. 2.92 m
b. 0.26 m
c. 2.48 m
d. 3.88 m

Explanation:

Step1: Identify the horizontal - motion formula

In horizontal motion (assuming no air - resistance), the distance $d$ is given by $d = v\times t$, where $v$ is the horizontal velocity and $t$ is the time of flight.

Step2: Substitute the given values

We are given that $v = 3.1$ m/s and $t=0.8$ s. So, $d=3.1\times0.8$.
$d = 2.48$ m

Answer:

C. 2.48 m