All categories

1 year ago

The world record for pole vaulting is 6.15 m. If the pole vaulter’s gravitational potential is 4942 J, what is his mass?

Physics

1 answer:

N76 [4]1 year ago

8 0

From the calculations, the mass of the pole is 82 Kg.

<h3>What is potential energy?</h3>

The term potential energy has to do with the energy that is possessed by a body by virtue of its position.

Given that;

height = 6.15 m

PE = 4942 J

mass = ??

g = 9.8 m/s^2

Now

PE = mgh

m = PE/gh

m = 4942 J/9.8 m/s^2 * 6.15 m

m = 82 Kg

Learn more about potential energy:brainly.com/question/24284560?

#SPJ1

You might be interested in

The human activities in two locations are described below:

Bogdan [553]

Air pollution level is higher in Location B, because poisonous fumes are produced when coal burns.

5 0

3 years ago

Read 2 more answers

What is 3,278,000 as scientific notation?

jonny [76]

3.278*10^6 I think. Sorry if it’s wrong.

4 0

2 years ago

A pulse of ultrasound is sent into the womb. It travels at a speed of 1500m/s in soft tissue and is reflected off the skull of t

erma4kov [3.2K]

D=vt use this equation to get the depth of the skull

8 0

2 years ago

the density of a steel is 7.8.find the mass of steel cube of side 10 cm. find volume of steel if the mass is 8kg

lukranit [14]

Answer:

Mass of the steel cube = 7800 kg

Volume of the steel = 1.025 cubic centimetre

Explanation:

Given:

The density of the steel = 7.8

Side of the cube = 12 cm

<u>(1)The mass of steel cube :</u>

We know that,

$Density = \frac{Mass}{Volume}$

We are given with density and sides of the cube

then volume of the cube

= $(side)^3$

= $10^3$

= 1000 cubic centimetre

Now

$7.8 = \frac{mass}{1000}$

$mass = 7.8 \times 1000$

mass = 7800 kg

<u>(2)volume of steel:</u>

Given the mass = 8 kg

$Density = \frac{Mass}{Volume}$

Substituting the values

$7.8 = \frac{8}{volume}$

$volume = \frac{8}{7.8}$

volume = 1.025 cubic centimetre

3 0

2 years ago

How much physical activity do adults need?

serg [7]

30? Physical activity

8 0

2 years ago

Read 2 more answers