All categories

1 year ago

The kinetic energy(Jules) of an object can be calculated using the following formula:

Mathematics

1 answer:

weeeeeb [17]1 year ago

3 0

Answer:

75 J

Step-by-step explanation:

You want to know the kinetic energy in joules of a 6 kg ball that has a velocity of 5 m/s. The formula is given.

<h3>Kinetic energy</h3>

Kinetic energy is energy of motion. It is jointly proportional to mass and the square of velocity. The value is given by the formula ...

KE = 1/2·mv²

For the given values of mass (6 kg) and velocity (5 m/s), the kinetic energy is ...

$KE=\dfrac{1}{2}(6\text{ kg})(5\text{ m/s})^2=75\text{ kg$\cdot$m$^2$/s$^2$}=\boxed{75\text{ J}}$

The kinetic energy of the ball is 75 joules.

<em>Additional comment</em>

The unit joule (J) is a derived unit of energy equal to 1 kg·m²/s²

You might be interested in

Felicia invested $25,000 into an account earning 3% interest compounded annually. She makes no other deposits into the account a

madam [21]

The formula is
A=p (1+r)^t
A future value?
P present value 25000
R interest rate 0.03
T time 9 years

A=25,000×(1+0.03)^(9)
A=32,619.33

7 0

3 years ago

Which term can be described as an if-then statement ?

tankabanditka [31]

It would most likely be D theory

8 0

3 years ago

Could someone explain and help

vichka [17]

Answer:

80°

Step-by-step explanation:

The sum of the two angles (red and blue) is 145°, so you have ...

(4x +5)° +(6x -10)° = 145°

10x = 150 . . . . . . . . divide by °, add 5, simplify

x = 15 . . . . . . . . . . . divide by 10

Then the measure of the angle of interest is ...

m∠XMN = (6x -10)° = (6·15 -10)° = 80°

8 0

3 years ago

Ce no

xenn [34]

Answer:

The height of the seat at point B above the ground is approximately 218.5 feet

Step-by-step explanation:

The given parameters are;

The radius of the Ferris wheel, r = 125 feet

The angle between each seat, θ = 36°

The height of the Ferris wheel above the ground = 20 feet

Therefore, we have;

The height of the midline, D = The height of the Ferris wheel above the ground + The radius of the Ferris wheel

∴ The height of the midline = 20 feet + 125 feet = 145 feet

The height of the seat at point B above the ground, h = r × sin(θ) + D

By substitution, we have;

h = 125 × sin(36°) + 145 ≈ 218.5 (The answer is rounded to the nearest tenth)

The height of the seat at point B above the ground, h ≈ 218.5 feet.

8 0

2 years ago

A sequence is defined by the recursive function f(n + 1) = one-halff(n). If f(3) = 9 , what is f(1) ?

almond37 [142]

Answer:

d.) 81

Step-by-step explanation:

f(2) would be 27 and 27x3 is 81.

81/3=27

27/3=9

9 0

3 years ago

Read 2 more answers