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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
Lead is a softer metal compared to copper, which makes it easier to rotate due to its lower hardness. The difference in hardness between the two metals affects their ability to deform under the rotational forces, leading to the lead sphere being easier to rotate.
Every hour the first travels 40 miles and the second 55 miles.
Thus every hour the second will travel 55 - 40 = 15 miles further.
So after 5 hours it will travel 15 x 5 = 75 miles further.
You cannot because you do not know how long before the object falls to the ground and so stops moving.
How many miles per hour is 28 miles in 1 hour 38 minutes?
28 miles in 1 hour 38 minutes equates to an average speed of 17.14 miles per hour.
If you ignore air resistance, then they will reach their maximum height at the same time. In order not to ignore air resistance, you would need to know their shapes.
What is the area under a jerk vs time graph?
Since jerk is defined as the derivative (the rate of change) of acceleration, in the case of the area under the curve, it is the other way round: the integral (area under the curve) for jerk is the acceleration.
How to calculate the normal force acting on an object held against a wall given mass and force?
The normal force is equal in magnitude but opposite in direction to the force applied against the wall. If the object is held against the wall with a force, then the normal force acting on the object will be equal in magnitude to that force. If the mass of the object is given, you can calculate the force needed to hold it against the wall using Newton's second law (F = ma).
What distance is traveled accelerating from 0 mph to 35 mph?
How fast are you accelerating? If I accelerate very slowly, I can travel about 100 miles before reaching 35 mph. On the other hand, a rocket propelled automobile could achieve 35 mph from standstill within ten feet.
How do you find average speed when time not given?
In that case, it would be good to know what you aregiven. It is possible that you don't have enough information.
What is energy force and motion?
Energy W is the ability to do work, W = -vp + cP where v is motion (velocity/speed) and p=h/w= mv is momentum.
Force is the first derivative of energy,
Force F = XW =[d/dr, DEL] [-vh/w, cP] = [ vp/r -cDEL.P, cdP/dr -DEL vh/w + cDELxP]
F = cp/r[v/c -cos(P), -1P + v/c 1R + sin(P) 1RxP]
Force = cp/r = cp/ct = p/t = mv/t = ma
Motion is the change in position per unit time and is related to Force and Energy.
What characterizes constant velocity motion on a position time graph?
A straight line with a constant slope.
But the reverse is not true. A straight line with a constant slope only means constant speed in the radial direction. The velocity may have components at right angles to the radial direction that are changing.
Does cold colder and coldest mean the same thing?
The words cold, colder, and coldest all contain the root "cold." The word "colder" is the comparative form of the word, which is used to compare the relative coldness of two things. The word "coldest" is the superlative form of the word, which is used to compare three or more things.
If you are moving at 1 knot what is the conversion to miles per hour?
A nautical mile (knot or kt) is approximately 115% of a statute mile. So if you're traveling at one kt, your speed in mph is 1.15. If you're going 10 kts, you're doing 11.5 mph, and if you're going 100 kts, you're doing 115 mph.
A nautical mile is 6076 feet and a statute mile is 5280 feet. Dividing 6076 by 5280 gives us 1.1507575 or...about 1.15, as stated in the above answer.
How long would it take to get to Neptune from earth at 500 mph on march 1?
The answer depends on the relative motion of Neptune. The distance from the earth to Neptune when you set off will not be the same as the distance when you arrive. You would need to calculate the position of Neptune at the arrival time.
This is like, if you are playing a ball game you do not go to where it is but to a point which you and the ball will get to at the same time.
What are the uses of V-T graph?
The uses of the V-T graph include finding acceleration and describing motion.
If you know what you're doing, you can also use a V-T graph to find the
distance covered during some period of time.
When will objects thrown upward start to go down?
When the vertical component of their velocity has dwindled to zero because of the
acceleration of gravity.
Why is the area under graph of force against time is used to find impulse?
Because impulse is the integral of the force over the time during which it was applied. Graphically, this is the area under the curve of force against time.
Force is rate of change of momentum. Even if you hit a brick wall you impart momentum to some of the atoms in it. The area under a graph of force against time is mathematically speaking the integral of the force with respect to time, as stated above. So it is the integral of the rate of change of momentum. But the integral of a rate of change of anything, is simply the total change. In this case, the total change of momentum. For a large force applied for a very small time, that is called (defined to be) an impulse, and it results in a change of momentum. Strictly it doesn't have to be a small time for this to be true, but impulses are generally imagined as being short time events.
The graph of acceleration vs time for something going at a constant positive velocity would be a horizontal line at zero on the acceleration axis. This is because there is no change in velocity, so the acceleration is constant and equal to zero.
