Answer:
Kinetic energy: 100 J. Potential energy: 0
Step-by-step explanation:
- The kinetic energy of an object is given by:
[tex]KE=\frac{1}{2}mv^2[/tex]
where m is the mass of the object and v is its speed.
In this problem, we have:
m = 2 kg is the mass of the ball
v = 10 m/s is its speed
Substituting into the formula, we find:
[tex]KE=\frac{1}{2}(2 kg)(10 m/s)^2=100 J[/tex]
- The gravitational potential energy of an object is given by:
[tex]GPE=mgh[/tex]
where g is the acceleration due to gravity and h is the heigth of the object above the ground.
Since the ball in this problem is rolling on the ground, we have h=0, therefore its potential energy is zero:
GPE = 0
