# How would I use the kinematic equations to derive a general equation for the time it takes a ball dropped from rest at vertical height #h# to reach the ground?

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I'm pretty sure that the answer would be

(1) #t = sqrt((2h)/(g))#

(2) Use the result from the part (1) above to write a general equation for the distance travelled by a projectile that is rolling off a table of height #h# with a horizontal speed, #v_(0x)# .

I'm pretty sure that the answer would be

(1)

(2) Use the result from the part (1) above to write a general equation for the distance travelled by a projectile that is rolling off a table of height

##### 1 Answer

Jun 22, 2017

The kinematic expression is

#s=ut+1/2 a t^2#

For a free falling body from height

#h=0xxt+1/2 g t^2#

Solving for

(2) Horizontal speed

Horizontal distance