A 10 Kg dog is running with a speed of 5.0 m/s what is the minimum work required to stop the dog
1 answer:
Answer:
25J
Explanation:
Given parameters:
Mass of the dog = 10kg
Speed of the dog = 5m/s
Unknown:
The minimum energy required to stop the dog = ?
Solution:
The dog is moving with a kinetic energy and to stop the dog, an equal amount of kinetic energy generated must be applied to the dog.
To find the kinetic energy;
K.E = m v²
m is the mass
v is the velocity
Now insert the parameters and solve;
K.E = x 10 x 5 = 25J
You might be interested in
The new force becomes One Ninth (1/9) of the original force.
The force between two point charges (let's say ) is given by the following formula:
Force divided by (
squared)
Here r is the distance.
If we multiply r by three then after squaring it will become squared.
Let's rewrite the formula and call it new Force:
New Force divided by
squared )
Now just separate the 9 :
New Force divided by
Squared ))
New Force (Force)
So turns out that the new force becomes One Ninth (1/9) of the original force.
A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to define force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Learn more about force brainly.com/question/13191643
#SPJ9