Question

A pile driver drops from a height of 35 meters

before landing on a piling. What is the
speed of the driver when it hit the piling?

Answer 1

26.19 m/s

Step-by-step explanation:

The gravitational potential energy of the driver would convert to the kinetic energy at the bottom.

`mg h = 0.5 mv^2`

Where, m is the mass, v is the speed, h is the height and g is the acceleration due to gravity.

Given,

h = 35 m

`v = \sqrt {2gh}= \sqrt {2* 9.8* 35} =26.19 m/s`