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Kinematics
Kinematics is the study of how a body moves. This includes linear motion, angular motion, and rotational motion.
3,459 Questions
What does the slope of load vs deflection the represent?
It is an approximate measure of elasticity.
It is an approximate measure of elasticity.
It is an approximate measure of elasticity.
It is an approximate measure of elasticity.
How much acceleration with result when 450N of force acts on 30kg?
What you mean to say is: "The net force acting on the ball is 30 N."
F = M A
A = F / M = (30) / (4) = 7.5 m/s2
That the component of the velocity towards or away from the origin is zero. You can infer nothing at all about its overall velocity since it could be travelling in a transverse direction at any velocity.
What is the physical meaning of the area under the curve of the graph of velocity vs time?
The area under the speed/time graph between two points in time
is the distance covered during that time.
The athlete with a mass of 100 kg will have greater momentum because momentum is directly proportional to mass. Both athletes have the same velocity, so the athlete with the larger mass will have the greater momentum.
Which has more momentum a gun or the bullet it fires?
If the gun is stationary before the shot, then the momentum of the gun and the
momentum of the bullet are equal and opposite after the shot.
What does the area under the a speed time graph represent?
In a speed - time graph, the area under the line equals the distance traveled during the time interval
A of ____ = L X W
A of triangle = 1/2 bh
How fast does it take for a 150 pound person to reach 125 miles per hour?
The answer depends on the person's mode of transport. In all likelihood, the person's mass is irrelevant.
How many mph can you get in 15 passenger van?
How many mph? I have no idea; my speedometer only goes to 85.
How many mpg? About 16.
Mine shuts off at 98mph and comes back on at 95
Going 60 km hour speed coming 80 km hour speed per km how much?
Not enough information. What do you want to calculate, total time? If that is the case, divide the distance by the time for both the "coming" and "going" part, and add both together.
121 kilometers per hour is approximately equal to 75 miles per hour.
Who is invented in kinematics?
Well obviously the person that was invented in kinematics is the massless, omniscient observer that calmly puts all the objects into motion instantaneously without consideration for past history or all other objects in the universe.
If the question had been "Who invented kinematics?". Well, really there is no one answer for that. Since kinematics is the study of motion and objects, humans have been doing that since the beginning of time. But who really started to scientifically analyze and put these observations onto paper? One of the most famous observer had been Galileo, who conducted many of the same experiments that physics students love doing experiments on. For instance, he observed that balls rolling down ramps traveled intervals of squared proportions (1, 4, 9, etc.) and he extrapolated that this held true for free falling objects too (though harder to observer without the technology of photography). Another famous experiment was the pendulum experiment, in which he measured rather accurately the periods of pendulums of various size and length, and observed many of the fundamental consequences that we take for granted (i.e. period of a pendulum is independent of weight and amplitude). But what really set in stone the study of kinematics was the work done by Newton, which introduced mechanics (or force analysis), and Calculus (yes, yes, Leibniz too) and kinematics became a relatively well defined field of physics.
