Kinetic energy is defined
KE = 1/2 * m * v^2
Let's put in the numbers
KE = 1/2 * 30 * 20^2 = 6000
Therefore, the answer is a) 6000 J
True, physical excercise helps
This would be most representative of Newton’s first law of motion, an object will continuously move in a straight line at constant velocity until a force is applied on to the object.
Answer:
Part A:
Part B:
Part C:
Explanation:
Part A:
We will use the following kinematics equation:
Part B:
We will use the same kinematics equation:
Part C:
The total time takes is 2t.
So the train moves a distance of
And the car moves a distance in Part A and in Part B:
So the total distance that the car traveled is
The difference between the train and the car is