Question

a body dropped freely from a certain height reaches the ground in t swconds then the average velocity during the free fall is​

Answer 1

Explanation:

displacement be s m.

time = t s

initial velocity(u) = 0 m/s

s = ut + 1/2 × g × t^2

=> s = 0 + 1/2 × 9.8 × t^2

=> s = 4.9 t ^2

so avg velocity = total displacement ÷ total time = 4.9 t^2 / t = 4.9 t m/s

Answer 2

Explanation:

1/2gt is your answer subha