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blondinia [14]
3 years ago
13

A 25g rock is rolling at a speed of 5 m/s. What is the kinetic energy of the rock?

Physics
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

The answer is 312.5j

Explanation:

The kinetic energy (KE):

KE=1/2*m*v^2

M= mass of the object

v= velocity of the object

We have;

m=25g

v=5m/s

KE=1/2*25g*5^2m/s

KE =312.5j

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We have that the magnitude of the gravitational force  is mathematically given as

f=6.377N

<h3>Force</h3>

Question Parameters:

Earth exerts a 100 N gravitational force on a metal box.

(Mass of the earth is 6e24 kg and radius of the earth is 6.4e6m.)

Generally the equation for the Gravitational mForce  is mathematically given as

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2 years ago
Select to show the energy of pendulum 1. Be sure that friction is set to none. Drag the pendulum to an angle (with respect to th
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it have Potential energy

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given data

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what form of energy does it have

solution

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we know that the total energy is always conserve  

so it have potential energy

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