A man on the 14 th floor of a building sees a bucket (dropped by a window washer) passing his window and notes that it hits the ground 1 second later. Assuming a floor is 4.9 meters high (and neglecting air friction), from what floor was the bucket dropped?

The bucket was the dropped from 56 th floor.

Explanation:

Given that,

Height of floor = 4.9 m

Height of 14 floor = 68.6 m

Time taken = 1 sec

We need to calculate the speed of the bucket

Using equation of motion

Put the value into the formula

We need to calculate the time

Using equation of motion

Put the value into the formula

We need to calculate the distance

Using equation of motion

Put the value into the formula

We need to calculate the number of floor

Put the value into the formula

The bucket was the dropped from

Hence, The bucket was the dropped from 56 th floor.