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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

Why is the shooter aim slightly above the target?

Shooters aim slightly above the target to compensate for the downward trajectory of the bullet due to gravity. This technique is known as adjusting for bullet drop and ensures that the bullet will hit the target accurately at longer distances.

How fast is the X43?

The X-43, an experimental unmanned aircraft, set a speed record of approximately Mach 9.6, or nearly 7,000 mph, during a test flight in 2004. This makes it one of the fastest aircraft ever built.

How do you get the formula mgh of potential energy?

The formula for potential energy, (mgh), comes from the equation (PE = mgh), where (PE) represents potential energy, (m) is mass, (g) is acceleration due to gravity, and (h) is height. This formula represents the energy an object possesses due to its position relative to a reference point.

How much energy can be created by pulling a on the cable on Aircraft carriers that use them to stop the jets and how can it be calculated or is there some sort of estimate number?

As the plane hits the deck, its kinetic energy is 1/2 (its mass) x (its speed)2,

so that's the amount of energy that has to go somewhere in order to bring

the plane to a complete stop where its kinetic energy is zero.

My guess at the moment is that the energy must be dissipated in one humongous

shock-absorber at each end of the cable. Springs don't dissipate the energy ...

they only store it, and then it still has to go somewhere. Shocks dissipate it.

Top speed of a jigster 1000?

The top speed of a Jigster 1000 motorcycle is around 160-170 miles per hour, depending on various factors such as rider weight, road conditions, and maintenance of the bike.

Why does kinetic energy depend on mass and speed?

Since kintetic energy is the energy of motion it depends on the two. mass affects inertia and inertia applies to kinetic energy. and speed is applied because the faster it going the more kinetic energy the object has.

How fast is 6 kmh in mph?

6 km/h is equivalent to approximately 3.73 mph.

How can you change an objects velocity?

To change an object's velocity, you can apply a force in the direction you want it to accelerate. This force can be produced by pushing, pulling, or using any other method of applying force to the object. Additionally, altering the mass of the object or the direction of the force can also change its velocity.

Why should the initial angle of displacement for a simple pendulum be small?

This is done in order to get unbalanced force act on the pendulum. A torque will act due to gravitation of the earth and the tension in the string as they then act at different points and opposite direction on the pendulum. Have the forces act at the same point, the formation of torque would have been ruled out and the pendulum would not swing.

Which is greater an acceleration from 25kmh to 30kmh or an acceleration from 96kmh to 100kmh if both occur at the same time?

The acceleration from 25kmh to 30kmh is greater.

Acceleration is the rate change in velocity with respect to time (dv/dt). Going from an initial velocity at one point in time to a final velocity at a later point in time, the average acceleration is given by (vf - vi)/(tf -ti), the change in velocity divided by the duration of acceleration. Since going from 25kmh to 30kmh is a change in velocity of 5kmh and going from 96kmh to 100kmh is a change in velocity of 4kmh, and the duration of each is the same, 25 to 30 is the greater acceleration.

How do you calculate initial velocity given only the initial position and the scale of the horizontal and vertical axes?

We suspect that you're also given a line on the graph. If so, then the initial speed

is the slope of the line at the initial position. To get the real slope of the line, you

need to know the scales of the axes. If the scales aren't the same, then the real

slope of the line isn't what it looks like, and has to be calculated by measuring its

progress along both axes just after the initial position.

A 6 kg block is pushed 8 m up a rough degree inclined plane by a horizontal force of 75 N if the initial speed is 2 ms and kinetic friction of 25N opposes the motion what is the initial kinetic en?

In this question, we would use the equation

K = 1/2mv^2

we know:

mass (m) = 6 kg

initial velocity (v) = 2 m/s

therefore, K = 1/2(6)(2^2)

K= 12 Joules (J)

What is the answer for 800 feet in 2 minutes 40 seconds?

800 feet in 2 minutes 40 seconds equates to 3.41 miles per hour.

What is the fine for going 62 mph in a work zone?

Fines for speeding in a work zone can vary depending on the state and local laws. It's best to check with the specific jurisdiction where the violation occurred to determine the exact fine amount for going 62 mph in a work zone. Note that fines for speeding in work zones are often higher than regular speeding fines to promote safety for road workers.

What is the change in velocity over time?

The change in velocity over time is known as acceleration. It measures how quickly an object's velocity is changing, either speeding up, slowing down, or changing direction. Acceleration is calculated by dividing the change in velocity by the time taken for that change to occur.

How fast was the rocket locomotive top speed without pulling a load?

The Rocket locomotive, designed by George Stephenson, achieved a top speed of around 30 miles per hour during its initial trials without pulling any load. This was an impressive speed for the time, demonstrating the effectiveness of its design and engineering.

What is the kinetic energy of a 10-kg dog chasing a car at 5 ms?

The kinetic energy of the dog can be calculated using the formula: KE = 0.5 * m * v^2, where m is the mass of the dog (10 kg) and v is the velocity (5 m/s). Plugging in the values, KE = 0.5 * 10 kg * (5 m/s)^2 = 125 Joules.

What is stantenous speed?

Assuming that you mean instantaneous (not "stantenous") it refers to speeds measured over an increasingly small time interval. In fact, it may be calculated as the derivative of the distance of the object with regard to time.

If a car stops suddenly your body keeps moving because it's because of Inertia ever heard of gravity and Inertia?

Yes, some times gravity effects but inertia depends upon external force and mass of it. Gravity is also an external force but in mass, higher the mass, higher the inertia and lower the mass, lower the inertia. For suppose an elephant and human, both are running in the same speed, human takes a short time to turn himself for his mass is less and less force is applied to turn whereas in elephant, its hard for it has more mass and takes a greater force to turn. Written by: Rohan Vaidya

How fast is Mach 6.7?

Basic: Mach is a measurement of the speed of sound in air. Therefore, mach6 is six times the speed of sound in air.

761.2 * 6 = 4,567.2 mile/hour (mph)

More in depth:

"Mach" is a relative measurement of speed and fluid temperature.

Here are some examples of Mach 6:

  • Mach 6 at sea level (0 feet) is 4,567.3 mph (CAS) and 4,567.3 mph (TAS)
  • Mach 6 at FL 50 (Flight Level 50,000) is 3,147.97 mph (CAS) and 3,960.31 mph (TAS)

CAS = Calibrated Air Speed. The speed which a instrument in the plane would show.

TAS = True Air Speed. The actual speed of the object relative to the medium it is traveling in.

When a gas is heated does all of the absorbed energy convert to kinetic energy If not please tell what it is converted to part kinetic and part potential energy or just potential energy?

The gas will have thermal energy given by its specific heat capacity (at constant pressure or volume depending on the situation) times the rise in temperature. This thermal energy is possessed because of the increased kinetic energy of its molecules, due to the rise in temperature.

Rincon 650 top speed?

The top speed for a Suzuki V-Strom 650, also known as the DL650, is typically around 120-130 mph depending on various factors. Although it has good performance, it's not typically categorized as a high-speed sport bike.