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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

How many feet per second at 10 MPH?

At 10 miles per hour (MPH), the speed is equivalent to 14.67 feet per second. This is calculated by multiplying the speed in miles per hour by 1.4667 (which is the conversion factor for converting miles per hour to feet per second).

A projectile fired from the ground follows a parabolic path The speed of the projectile is minimum at the top of its path?

At the top of its path, the vertical component of the projectile's velocity is zero, making the overall speed minimum. This occurs because gravity slows down the projectile's upward motion until it stops momentarily before falling back down. The horizontal component of the velocity remains constant throughout the motion.

How do substances get increased potential energy?

Substances can increase their potential energy by absorbing external energy through processes like chemical reactions, phase transitions, or external forces. This added energy causes the molecules or particles within the substance to move further apart or into higher energy states, resulting in an overall increase in potential energy.

In the absence of air resistance how would the acceleration of 1.5 kg book and tha acceleration of 15 rock differ if the objects dropped from the same height?

The acceleration due to gravity is a constant value of approximately 9.81 m/s^2 for both the book and the rock, regardless of their mass. Therefore, both the book and the rock would accelerate at the same rate and fall at the same speed when dropped from the same height in the absence of air resistance.

What does the slope of a wavelength vs period graph tell you?

The slope of a wavelength vs period graph represents the speed of the wave. A steeper slope indicates a higher speed, while a gentler slope indicates a slower speed.

What is the difference between vertical acceleration and horizontal acceleration?

Vertical acceleration is the rate of change of velocity moving up or down, while horizontal acceleration is the rate of change of velocity moving left or right. Vertical acceleration is affected by gravity, while horizontal acceleration is typically due to external forces like friction or thrust.

When a vehicle is slowing down what changes its momentum and kinetic energy as force of brakes is an internal force?

When a vehicle is slowing down, the external force of friction between the brakes and the wheels is what changes its momentum and kinetic energy. This force works against the vehicle's motion, transferring kinetic energy into heat and bringing the vehicle to a stop. The force of the brakes is an internal force that generates friction to slow down the vehicle.

If the net force is zero is the force balanced or unbalanced?

The the forces are unbalanced, that means that the net force is non-zero.

How fast is 150 fps?

Approximately 102.3 mph at 150 feet per second.

Find the momentum of a tennis ball of mass 60.0 grams served with velocity 65.0 miles per second?

Momentum (P) is the product of mass (m) and velocity (v).

P = m X v

It's easy to get confused by combining metric units (grams) with imperial units (miles per second). Converting all the units to one system first will simplify calculations.

Distance time graph of a moving body is air is ascending straight line?

objects that don't receive any othe force have acceleration a=10m/s, which means their velocity changes. the speed of an object is given by the formula u=V+a*t when the object is falling, and u=V-a*t when the obect is ascending., where u its current speed, V it's starting speed and t the time, and positive direction is down.

through the use of integrals it is proven that its position is x=V*t+(-)a*t/2. this is a parabola graph, so no it is not a straight line.

A car's motor does 2500 kJ of work in moving the car however the car only has 18 kJ of kinetic energy. Explain how this can happen?

The car's motor does work to transfer energy, a portion of which is used for purposes other than kinetic energy, such as overcoming friction, air resistance, or internal mechanical losses. Therefore, not all the energy output by the motor contributes to the car's kinetic energy, resulting in a discrepancy between the work done by the motor and the car's kinetic energy.

Explain the relationship between kinetic energy and the kelvin scale?

The kinetic energy of an object is directly proportional to its temperature on the Kelvin scale. The Kelvin scale is an absolute temperature scale that starts at absolute zero, where particles have minimal kinetic energy. As the temperature on the Kelvin scale increases, so does the average kinetic energy of the particles in a substance.

An object moving at 30 miles per ssecond takes 5 s to come to a stop what is the object's acceleration?

The object's acceleration is equal to the change in velocity divided by the time taken. The initial velocity is 30 miles per second, and the final velocity is 0 miles per second. The change in velocity is 30 miles per second. Therefore, the acceleration is 30 miles per second divided by 5 seconds, which is 6 miles per second squared.

I you can get 15 miles in 18 minutes how many miles can we get in 54 minutes?

In 18 minutes, you can travel 15 miles. To find out how many miles you can travel in 54 minutes, you would divide 54 by 18 to get 3 (54/18=3), then multiply 15 miles by 3 to get 45 miles in 54 minutes.

Loss of power over 50 mph?

Loss of power at speeds over 50 mph could be caused by a variety of issues such as a clogged fuel filter, a failing fuel pump, a malfunctioning air intake system, a clogged catalytic converter, or an issue with the ignition system. It's best to have the vehicle diagnosed by a mechanic to determine the exact cause of the loss of power.

What word is the definition of the rate velocity changes with time gravity mass velocity or acceleration?

Acceleration is the word that represents the rate at which velocity changes with time. It is a vector quantity that can be caused by factors such as gravity or changes in the mass or velocity of an object.

What happens to an objects temperature if the kinetic energy of its particles decreases?

If the kinetic energy of an object's particles decreases, its temperature will decrease as well. Temperature is a measure of the average kinetic energy of the particles in a substance, so a decrease in kinetic energy means a decrease in temperature.

As an object falls toward the ground what happens to the kinetic energy of the object?

It gains kinetic energy because it is accelerating. Once it hits the ground, all of it's kinetic energy is converted different types of energy. Example: drop a rock from your head. When it hits the ground it create friction and there fore heat, heat is energy. It also makes a sound when it hits the ground, sound is energy. If you were to take the heat and the sound energy a d add them together, you would get the equal amount of potential energy the rock had when it was at your head ready to drop. Therefore, in this case, the kinetic energy was coverted to heat energy and sound energy.

He noticed that the speed limit was 95 km h how fast can he drive in mph?

To convert 95 km/h to mph, you can multiply by 0.6214. Therefore, he can drive at approximately 59 mph.

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