How do i calculate the kinetic energy
1 answer:
The kinetic energy is found at 150 J. The work-energy theorem is applied in the given equation.
<h3>What is Kinetic energy?</h3>The energy possessed by the body by the virtue of motion is known as Kinetic energy. It is found as the product of mass and the square of the velocity.
The given data in the problem is;
The mass is, m=0.15 kg
Force, F=300 N
Distance,d=0.50 m
From the work-energy theorem, kinetic energy is equal to the work done.
Work done = Kinetic energy
Hence, kinetic energy is found at 150 J.
To learn more about the kinetic energy, refer to the link;
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Answer:
0.8s
Explanation:
Given parameters:
Height of shelf = 3m
Unknown:
Time it will take to hit the ground = ?
Solution:
To solve this problem, we use the expression below;
x = ut + gt²
x is the height
u is the initial velocity = 0m/s
g is the acceleration due to gravity = 9.8m/s²
t is the time taken = ?
Now insert the parameters and solve for t;
3 = (0 x t) +( x 9.8 x t²)
3 = 4.9t²
t² = 0.6
t = 0.8s