Question

A cup falls off of a table from a height of 0.75 m. What is the impact speed of the cup?

Answer 1

3.83 meters per second.

Answer 2

The impact speed of the cup is 3.83 m/s.

Step-by-step explanation:

Given that,

Height = 0.75 m

We need to calculate the impact speed of the cup

Using kinetic and potential energy

`K.E=P.E`

`(1)/(2)mv^2=mgh`

Where,

M = mass of the cup

v = velocity of cup

g = acceleration due to gravity

h = height

Put the value into the formula

`(1)/(2)v^2=gh`

`v=√(2gh)`

`v=√(2*9.8*0.75)`

`v=3.83\ m/s`

Hence, The impact speed of the cup is 3.83 m/s.