Question

At a construction site a pipe wrench struck the ground with a speed of 23 m/s. (a) From what height was it inadvertently dropped? (b)How long was it falling?

Answer 1

Answer:26.96 m,2.34 s

Step-by-step explanation:

Given

Wrench hit the ground with a speed of 23 m/s

Applying equation of motion

`v^2-u^2=2as`

Here u=0 because it is dropped from a height of S m

`23^2-0=2* 9.81* s`

`s=(529)/(2* 9.81)=26.96 m`

Time required by wrench to hit the ground

v=u+at

`23=9.81* t`

`t=(23)/(9.81)=2.34 s`