An object’s kinetic energy when it moves at different velocities is shown in the graph.
What is the kinetic energy of the object when its instantaneous velocity is 2 m/s?
What is the kinetic energy of the object when its instantaneous velocity is 4 m/s?
What is the object’s mass?
An object has 75 J of kinetic energy and a mass of 1.5 kg. What is the velocity of the object?
An object that has 9 J of kinetic energy is moving at 3 m/s. What is the mass of the object?
An object’s kinetic energy when it moves at different velocities is shown in the table. What is the object’s mass in grams?
|Kinetic Energy (J)||0.1||0.4||0.9||1.6||2.5|
The quantity , the velocity of an object, is how much the object changes its displacement from a given position each second. The quantity is the kinetic energy of an object. Which of the following formulas correctly shows the relationship between , , and the mass of the object?
An object with a mass of 1.25 kg has a velocity of 12 m/s. What is the object’s kinetic energy?
A hummingbird has a mass of 40 g. The hummingbird flies in a straight line between two flowers 18 m apart in a time of 12 s. What is the average kinetic energy of the hummingbird while flying between the flowers?
A motorcycle of mass 250 kg moving at 32 m/s has four times as much kinetic energy as a 640 kg mass car. What is the velocity of the car?
A motorboat at rest on a lake has a mass of 665 kg. The motorboat then accelerates until it has a kinetic energy of 340 480 J. When the motorboat has accelerated, at what rate does it move toward a stationary boat that is directly in front of it?