Question

What is the velocity of an object that has been in free fall for 2.5 s?

Answer 1

After 2.5 seconds of free fall, an item will be moving downhill at a speed of 25 m/s.Option D is correct.

What is velocity?

The change of displacement with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.

The given data in the problem is;

t(time)= 2.5 s

u(falling velocity)=0 m/sec

v(striking velocity)=?  (m/sec)

Newton's first equation of motion:

v=u+at

v=u+gt

v=10 × 2.5

v= 25 m/s downward(+ ve taken as downward)

The velocity of an object that has been in free fall for 2.5 s will be 25  m/s downward.

Hence, option D is correct.

To learn more about the velocity refer to the link;

brainly.com/question/862972

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