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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 is 40 km in mph?

40 kilometers per hour is equivalent to approximately 24.85 miles per hour.

How many miles jogged in an hour at the rate of 8.5 feet per second?

To convert feet per second to miles per hour, first convert feet to miles. There are 5280 feet in a mile. So, 8.5 feet per second = 8.5 * 3600 seconds in an hour / 5280 feet in a mile = 5.78 miles per hour.

What equation use for kinetic energy?

The equation for kinetic energy is KE = 0.5 * m * v^2, where KE represents the kinetic energy, m is the mass of the object, and v is its velocity. This equation shows that kinetic energy is directly proportional to the mass of the object and the square of its velocity.

What is is 45 mph in kmh?

45 miles is 72.4 kilometres. 45 miph is 72.4 kmh-1.

What is her kinetic energy if her mass is 70 kg and she is traveling at a rate of 6 meters per second?

The kinetic energy of an object is calculated using the formula KE = 0.5 * m * v^2, where m is the mass in kg and v is the velocity in meters per second. Plugging in the values given (m = 70 kg and v = 6 m/s), we find KE = 0.5 * 70 * 6^2 = 1260 J. So, her kinetic energy would be 1260 Joules.

How fast was a majungasaurus?

Majungasaurus was estimated to have been able to run at speeds of around 20-25 km/h (12-15 mph). It was a large theropod dinosaur, so it would have been fairly quick for its size.

How fast in mph is a 5.45 mile?

A 5 minute 45 second mile equates to a pace of 10.4347 mph

How fast is 3200kph in mph?

3200 kilometers per hour is approximately 1988 miles per hour.

What is the frequency of a 15 meter wave traveling at 250 meters per second?

The frequency of a wave is given by the formula: frequency = speed / wavelength. In this case, the wavelength is 15 meters and the speed is 250 meters per second. Therefore, the frequency of the 15 meter wave traveling at 250 meters per second would be 250 / 15 = 16.67 Hz.

What is 40 kilometers per hour in miles per hour?

40 kilometers per hour = 24.85 miles per hour.

Does corn have kinetic energy?

No, corn could be said to have potential energy due to it's position or constituents.

What is the kinetic energy of a baseball moving at a speed of 40ms if the baseball has a mass of 0.15 kg?

Kinetic energy is...

EK = 0.5 M V2

...where EK is energy in joules, M is mass in kg and V is velocity in m s-1. Plugging in the knowns, we get

108 = (0.5) (0.146) V2

Solving for V, we get

V = 38.5 m s-1

What is 420 kph in mph?

By mph, I assume you mean miles per hour, and not meters per hour.

We do know, 1 km = 0.6213 mile

Therefore,

420 km/h x (0.6213 mile/1km) = 260.9 miles per hour = 261 miles per hour (rounded off to 3s.f.)

How fast is 55 knots in kph?

55 knots is approximately equivalent to 101.9 kilometers per hour (kph).

What is 320kph in MPH?

320 kilometers per hour is approximately 199 miles per hour.

What is 180 knots per hours in miles per hours?

1 knot (nautical mile per hour) = 1.15077945 mph

178 knots * 1.15077945 mph/knot ~= 204.8 mph

Is speed reading real?

Yes, speed reading is a technique that involves reading quickly without sacrificing comprehension. It typically involves minimizing subvocalization (saying words in your head while reading) and utilizing techniques like chunking and skimming to increase reading speed. While some people may naturally read faster than others, speed reading can be learned and improved with practice.

What is the recoil velocity of the pistol when a bullet of mass 20g is fired with a velocity 150ms from a pistol of mass 2kg?

Momentum before = momentum after.

Since there was no movement before, momentum before = 0

If you think of the bullet as forward/positive momentum and the gun as backward/negative momentum then the momentum of the bullet plus the momentum of the gun =0

and therefore the momentum of the bullet = the momentum if the gun.

momentum = mass x velocity P=m/v

20gx150m/s = 2000g (2kg) x velocity

3000 = 2000v

3000 / 2000 = v

v = 1.5m/s

Can an object have a constant speed and a varying velocity?

Yes, an object can have a constant speed but varying velocity if it changes direction while moving at that speed. Velocity includes both speed and direction, so if an object is moving in a straight line at a constant speed but changing direction, then its velocity is constantly changing even though its speed remains the same.

What is the formula for speed and acceleration?

The formula for speed is speed = distance / time, where speed is measured in m/s or km/h. The formula for acceleration is acceleration = change in velocity / time taken, where acceleration is measured in m/s².

How many miles per hour are there in 75k per hour?

There are no miles in 75 kilometers per hour, it is a measure of speed and not distance. To convert 75 kilometers per hour to miles per hour, you can use the conversion factor: 1 kilometer is approximately 0.621 miles. So, 75 kilometers per hour is approximately 46.6 miles per hour.