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Is the kinematics equations true if acceleration is not uniform?
The answer is "No". If acceleration changes, forces of inertia should be taken to consideration. It requires dynamic equations of motion. However, if acceleration changes are not significant, you may continue using kinematics. To check if kinematic solution is within required precision limits you need to compare the solution of kinematic and dynamic equations and decide if kinematic solution is good enough.
Is the statement 'a body moving with uniform speed along a circular path is subjected to uniform acceleration' true or false justify?
This statement is true. This type of movement is called Uniform Circular Motion. For every circular motion at constant speed, there is a constant radial acceleration (always pointing towards the center of the circle) named centripetal acceleration. This constant acceleration ensures that at every moment during the motion the orientation of the velocity is changed so that the object stays in a circular path.
True or false Many people in many types of jobs not just physicists use kinematics ideas?
True. Kinematics, which is the study of motion without considering the forces that cause the motion, is a fundamental concept in physics. Many professionals in various fields, such as engineers, architects, animators, and even athletes, use kinematics ideas to analyze and design systems involving motion.
What True or false F ma represents Newtons second law of motion?
True. The equation ( F = ma ) represents Newton's second law of motion, where ( F ) is the net force acting on an object, ( m ) is the mass of the object, and ( a ) is the acceleration produced by that force. This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
What percent of earth's gravity does mars have?
The acceleration of an object under the force of gravity alone is*: a = GM/R^2 a = acceleration G = gravitational constant (G = 6.674E-13 Nm^2/kg^2) M = mass of the object/planet R = distance from the center of the object/planet At the equator, an object dropped near the surface of Earth falls with an acceleration of 9.78 meters per square second. At the equator on Mars, and object dropped at the surface will fall with an acceleration of 3.71 meters per square second. Therefore Mars has about 38% of the Earth's gravity. *This equation is only true for spherically-distributed masses
If velocity is constant then what is the true accelleration?
In a theoretical scenario with constant velocity, the true acceleration would typically be zero.
Is the kinematics equations true if acceleration is not uniform?
The answer is "No". If acceleration changes, forces of inertia should be taken to consideration. It requires dynamic equations of motion. However, if acceleration changes are not significant, you may continue using kinematics. To check if kinematic solution is within required precision limits you need to compare the solution of kinematic and dynamic equations and decide if kinematic solution is good enough.
Is it true that the acceleration of an object is constant?
No, the acceleration of an object is not always constant. An object can have a variable or changing acceleration depending on the forces acting upon it. For example, an object in free fall has a constant acceleration due to gravity, while an object experiencing friction will have a changing acceleration.
When can you have no acceleration?
To make acceleration equal zero. The velocity must be constant. For example, if velocity is constant at 10 m/s^2 its acceleration is zero. The same is true if velocity is 0 m/s^2.
When is instantaneous acceleration and average acceleration the same?
Instantaneous acceleration and average acceleration are the same when an object's acceleration is constant over the entire time interval being considered. This means that the object's velocity is changing at a constant rate, resulting in both the instantaneous and average accelerations being equal.
Why is the velocity 0 when your speed is constant?
It's not. If you speed is constant (but not zero), then your velocity won't be zero, either.You may be confusing this with the following: If your VELOCITY (not your speed) is constant, then your ACCELERATION is zero. Acceleration refers to how quickly velocity changes, so if velocity doesn't change at all, acceleration is zero.
Is the statement 'a body moving with uniform speed along a circular path is subjected to uniform acceleration' true or false justify?
This statement is true. This type of movement is called Uniform Circular Motion. For every circular motion at constant speed, there is a constant radial acceleration (always pointing towards the center of the circle) named centripetal acceleration. This constant acceleration ensures that at every moment during the motion the orientation of the velocity is changed so that the object stays in a circular path.
What is the net force when acceleration is zero?
This is a good question. We can relate force and acceleration using the equation F=ma, where m is mass. If the net force, F is zero, that means that either the mass or the acceleration has to be zero so that the equation is true. All objects have mass, so m can't be zero. That means that a has to equal zero in all cases. It is also important to note that acceleration is how fast an object is speeding up or slowing down. An object may be moving and have zero acceleration, if it's velocity is constant. Hope this helps.
Acceleration is the slope of the velocity vs time graphing?
Acceleration is actually the rate of change of velocity over time. It is the derivative of the velocity function with respect to time. If the velocity vs time graph is a straight line, the acceleration is constant.
Is it true that when a constant force is applied to a body it moves a uniform acceleration?
Yes, that is true - assuming you are referring to the net force, i.e., the sum of all forces on an object. Please note that in practice, opposing forces such as air resistance may vary depending on speed.
Is this statement true or false In the equation y equals 3 over X's the constant of variation is X's?
False.
Many people in many types of jobs not just physicists use kinematics ideas?
The correct answer is: True. Kinematics ideas are used in a number of different fields, including bio-mechanics (studying how artificial joints work), forensics ( studying how car crashes occurred), and even car racing (determining ideal engine settings, acceleration and braking rates, etc.).
