Answer:
The hammer's velocity when it strikes the ground is 128 ft/s.
Explanation:
Given that,
The distance (in feet) the hammer falls in t sec is given by the relation as :
The hammer is accidentally dropped from a height of 784 ft. We need to find the hammer's velocity when it strikes the ground. We know that the velocity of an object is equal to :
When the hammer strikes ground, s = 256 ft
So,
So, the velocity of the hammer when it strikes the ground is given by :
So, the hammer's velocity when it strikes the ground is 128 ft/s. Hence, this is the required solution.