a marble dropped from rest falls freely until it hits the ground with a speed of 35 meters per second. the time during which the marble is in free fall is approximately

v=gt

t=v/g

a marble dropped from rest falls freely until it hits the ground with a speed of 35 meters per second. the time during which the marble is in free fall is approximately

To find the time during which the marble is in free fall, we can use the equations of motion for freely falling objects. The relevant equation in this case is:

v = u + at,

where:
v is the final velocity (35 m/s),
u is the initial velocity (0 m/s, as the marble is dropped from rest),
a is the acceleration due to gravity (-9.8 m/s^2, assuming downward direction),
t is the time.

Rearranging the equation to solve for time (t), we have:

t = (v - u) / a.

Substituting the given values, we get:

t = (35 m/s - 0 m/s) / (-9.8 m/s^2) ≈ 3.57 seconds.

Therefore, the time during which the marble is in free fall is approximately 3.57 seconds.