How does increasing the speed of a motorbike change the amount of energy in its kinetic energy store?
2 answers:
Answer:
If the speed of a motorbike increases, its kinetic energy will also increase.
Explanation:
Kinetic energy is the energy an object has due to its motion, and it is a function of the mass and velocity of the object:
From the expression, it is easy do identify a quadratic relation between kinetic energy and velocity. Therefore, if the speed of a motorbike increases, its kinetic energy will also increase.
For example, if you increase the speed of a motorbike by 10 times, and since mass is a constant value, the kinetic energy will increase by 100 times.
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Answer:
C. Why you must push harder to move a car farther.
Explanation:
Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.
Mathematically, it is given by the formula;
Hence, Newton's 2nd Law explains why you must push harder to move a car farther because of its mass. Thus, it is important to increase the force that the engine provides and decrease the mass of the car.