alanpasamante alanpasamante

11-12-2018
Physics

contestada

A 5.0 kilogram rock rolls off the edge of a cliff. If it is traveling at a speed of 24.2m/s when it hits the ground, what is the height of the cliff?

Respuesta :

shirukaza shirukaza

11-12-2018

Using the kinematic equation ;

vf²=vi²+2ad just rearrange for d;

vf²-vi²=2ad;

(vf²-vi²)/2a=d

Now plug the numbers in.

vf=24.2

vi=0

a=9.81=g

(24.2²-0²)/(2*9.81)=29.8 m.

Answer Link

Otras preguntas

What is a substance?

WILL GIVE BRAINLIEST!! Need help on 1, 3, 9, and 10! Word bank: Pagar Organizar Recoger Buscar Sacar Secarse Pescar

What is the mass of two moles of HNO3?

In the equation for elastic potential energy below, what is represented by the symbol k? Ee = ½ × k × e²

Why did Piggy and Ralph go to Castle Rock?

The angle measurements in the diagram are represented by the following expressions

Please dude I NEED AN ANSWER

there are 250 people in a muesum. 2/5 are girls. 3/10 are boys. the rest are adults. Work out the number of adults

How do you think Henry Wallace’s background and previous disagreements with President Truman might have biased his thoughts provided in this primary source doc

Henry buys a candy bar worth $3.20 plus a chocolate bar worth $1.60. How much change does he have leftover from $8.50? EXPLAIN!