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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

Whereas impulse involves the time that a force acts work involves what factor?

Work involves both the magnitude of force and the distance over which the force is applied. Work is calculated by multiplying the force exerted on an object by the distance the object moves in the direction of the force.

How many mph is 100 yards 11 seconds?

To find out how many mph is 100 yards in 11 seconds: First, convert 100 yards to miles (100 yards = 0.057 miles). Next, calculate the speed by dividing the distance (in miles) by the time (in hours) - 0.057 miles / (11 seconds / 3600 seconds) = 19.64 mph.

How much time for 260 miles at 80 mph?

about 5 hours and 45 minutes You can find the answer by dividing 430 by 80 to get 5.375 hours. To convert tenths of an hour to minutes, multiply .375 by 60 and you get 22.5 minutes. So the answer is 5 hours and 22.5 minute (if you don't stop).

How fast is 1.7 mph in kmh?

1 mile = 1.609344 km

→ 17 mph = 17 × 1.609344 km/h ≈ 27.4 km/h

When an object falls from a height and bounces it's energy changes form When a ball bounces it's potential and kinetic energies change Eventually the ball will stop bouncing Why does the ball stop?

The ball stops bouncing due to a loss of energy through various forms such as heat, sound, and deformation of the ball. As the ball bounces repeatedly, these energy losses accumulate, causing the ball to eventually come to a stop.

How fast is 320 mph in kph?

A kilometer (km) is 5/8 (or 60%) of a mile. So 330 kph x .6 = 198 mph. Or times 330 x .621=204 mph
Quick & easy (& approximate) calculation learned while driving in Germany... multiply by 6 and drop the last digit... 6 x 330 = 1980 = 198mph

How much is 80 miles per hour in kilometers?

There can be no equivalence. Miles per hour is a measure of speed while a kilometre is a measure of distance. The two measure different things and, according to basic principles of dimensional analysis, any attempt at conversion from one to the other is fundamentally flawed.

How fast in knots is 29 mph?

29 Nautical miles per hour (aka knots) is 33.37 statute miles per hour.

A nautical mile is 6000 ft while a statute mile is 5280 feet

When pendulum stops has the kinetic energy changed to potential energy?

As the pendulum stops swinging, its maximum kinetic energy (the initial energy at the beginning of the swing) decreases, and its potential energy increases. Once the pendulum stops, it will have zero kinetic energy and maximum potential energy.

Is illumination possible in the absence of an observer?

In the absence of an observer, illumination as a physical process can still occur, such as light shining on an object. However, the perception or experience of illumination requires an observer to interpret and be aware of the light.

When a pendulum is at the center position what is true of the kinetic and potential energy?

If a pendulum is at its center position, then there are two possibilities:

1). It may be swinging. Then its kinetic energy is maximum and its

potential energy is zero.

2). It may be stopped altogether. Then it has no energy at all.

When a book falls to the floor what happens to the potential energy?

When you drop a book the original potential energy is converted into the kinetic energy, When the book hits bottom the kinetic energy is absorbed by the surface underneath and some is converted to sound energy.

This maintains the law of conservation of energy. the total amount of energy in this universe is constant and remains constant. Energy can neither be created nor destroyed it can just change its form from one form to another.

What is the velocity of a 1000kg car if its kinetic energy is 200kJ?

KE = 1/2mass * velocity squared

some conversion needed

60 kilometer per hour (1000 meters/1 kg)(1 hr/3600 seconds)

= 17 meter per second

=================

KE = 1/2(1000 kilograms)(17 m/s)2

= 1.4 X 105 Joules

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What influences the kinetic energy of an object?

The mass and velocity of an object determine the kinetic energy of an object. The equation for kinetic energy is KE = 1/2mv2, where m is mass in kg, and v is velocity in m/s.

How can you practice safety when dealing with moving objects?

Monitor, and maintain awareness of, the position, speed, and direction of all

moving objects. Maintain and continuously update predictions of the future

course of each moving object. Move out of the path of any moving object,

i.e. get out of the way, before it reaches your position.

What is the rate of 48 miles in 20 minutes?

There are 5280 feet in one mile. Therefore, 48 miles per hour is equal to 48 x 5280 = 253440 feet per hour.

There are 3600 seconds in one hour. Therefore, 253440 feet per hour is equal to 253440/3600 = 70.4 feet per second.

What is 150 yards per minute to feet per day?

To convert 150 yards per minute to feet per day, first convert yards to feet by multiplying 150 yards by 3 to get 450 feet per minute. Then, multiply 450 feet by the number of minutes in a day (1440) to get 648,000 feet per day.

How much mph is 1200 km?

A mile is 1.609344 km. Thus to convert from miles to kilometres you need to multiply by 1.609344. In this case we get:

1.609344 x 120 = 193.12128

Thus 120mph is about 193km/h

Can an object be accelerated without speeding up or slowing down Explain?

Imagine an object traveling a circle at constant speed, but according to Newton's First Law, an object moving in a straight line will continue to move in the straight line at constant speed unless acted upon an external net force not equals to zero. Hence, it can be concluded that the object is acted upon by an external force since it is not moving in a straight line, with the net force directed at the center of the circle and similarly for the acceleration, although it may be still traveling at the same speed (note: it's speed not velocity!)

What does 'top speed' mean?

'Top speed' refers to the maximum speed that a vehicle or object can achieve under optimal conditions. It represents the highest rate of travel that can be reached by a particular vehicle or object.

How much is 325 miles in 6.5 hrs in feet per second?

To convert 325 miles in 6.5 hours to feet per second, first convert 325 miles to feet (1 mile = 5280 feet). Then divide the total distance in feet by the total time in seconds (6.5 hours = 23400 seconds) to get the speed in feet per second.

Which quantity is given by the area under the velocity time graph?

If you're graphing velocity vs. time, you're denoting what velocity you're moving at various points in time.

The slope of the line at any given point is your acceleration at that time.

The area beneath the graph would be the total distance traveled.

For example, if you were traveling at 50mph for one hour, the graph would be a straight line parallel to the x axis. The area will be 1 hour * 50 miles per hour = 50 miles.

By the way, if you can get this concept down, you've figured out the basic ideas of differential and integral calculus! The slope of the graph is the differential, and the area under the curve is the integral.

Is a piece of candy kinetic energy or potential energy?

Candy is a lump of edible substances comprised mostly of sugar.

-- The chemical energy in the sugar can be released by your body's

metabolism if you put the candy inside.

-- If, instead of that, you put the candy on a high shelf, then it has

potential energy.

-- Alternatively, if you throw or drop the candy, then as long as it's moving,

it has kinetic energy.

What is the acceleration of a car that screeches to a stop if it takes 3 seconds to go from 36 meters per seconds to 0 meters per seconds?

Acceleration = (change in speed) divided by (time for the change) = (0 - 36)/3 = -12 m/s2

The acceleration of gravity is 9.8 m/s2, so the passengers are pulled forward

against their seat belts with a 'force' of 1.22 Gs during the screech.