Kinematics

You can calculate the tangent for a give time, T, as follows:

Substitute the value of the time in the distance-time equation to find the distance at the given time. Suppose it is f(T).

Differentiate the distance-time equation with respect to time. For any given time, substitute its value in the derivative and evaluate. That is the gradient of the tangent, v.

Then equation of the tangent is

f(T) - f(t) = v*(T - t)

1,200 meters in 6 minutes 24 seconds converts to 7 mph

It depends on the cartridge specifications and what gun it is shot from (the barrel length). Generally speaking, you can get between about 700 FPS (the very low end) to about 1200 (the very high end, normally with lighter bullet weight. However, more commonly, it will be between 850 and 1000 FPS.

12,320 feet or 2.33 miles.

Inertia is the resistance to change of an object in motion. In other words, an object at rest wants to stay at rest, and an object in motion wants to stay in motion. this is why it might take a person's whole body strength to start pushing a car down the road from a dead stop, but once it is in motion, it may only take one hand to keep it moving. Once you stop pushing the car, it slows and eventually stops because the frictional forces acting against the car's motion are greater than those keeping it moving.

The kinetic energy of the child and the bike can be calculated using the formula KE = 0.5 * m * v^2, where m is the total mass (45 kg) and v is the velocity. First, calculate the velocity using the given distance and time. Then substitute the values into the formula to find the kinetic energy.

Momentum is the product of mass and velocity, so just multiply both values
IF THE UNITS ARE APPROPRIATE.:


725 kg X 30 m/s = 21,750 kg-m/s.

(If the mass of the car were 725 slugs and it was moving at 30 miles per hour,
then you could not just multiply those numbers.)

Use conservation of linear momentum. Before firing the bullet the total momentum was zero (assuming you were not moving), therefore, after firing the bullet, the total momentum must needs also be zero. Therefore, after the shot, m1v1 + m2v2 = 0, where m1 and v1 correspond to the pistol, and m2 and v2 correspond to the bullet.

distance = speed x time

However we first must convert seconds to hours before we can use this formula.

60 x 60 = 3600 second in an hour. So 2 seconds = 2/3600 = 1/1800 of an hour.

So Distance = 50 x 1/1800 = 0.027... miles

Now since 1 mile = 5280 feet:

0.027... x 5280 = 146.6.. feet = 147 feet (nearest foot)

The distance travelled in two seconds in the units of yards is numerically equal to the speed in MPH with only a 2% error.

It will take 3 hours.

Yes, all things being equal, crash severity does increase proportional to the speed of each vehicle at impact, and is a vector sum. So, there is a big difference between crash severity at impact from being "rear-ended" (when one vehicle is traveling the same direction as another, and impacts the front of their vehicle with the rear of another) and a "head-on" impact (two cars traveling into one another, impacting both front bumpers).

In the rear-end impact, you take the momentum (mass times velocity) of the rear, impacting vehicle "A" and subtract the momentum of the front-most impacted vehicle "B", and that gives you the resultant impact force (the difference in momentum being transferred).

weak impact scenario example: vehicle A is traveling 60 mph, and vehicle B is the same mass and is traveling 50 mph. The difference in momentum would be the mass times 10 mph...not much.

severe impact scenario: vehicle A is traveling 70 mph, and vehicle B is at rest (0 mph)...large impact.

In the head-on impact, you have the most severe crash scenario. In this case, you ADD the momentum of vehicle A with the momentum of vehicle B, and you get the resultant force of impact.

Even if both vehicles are traveling 30 mph, with the same mass, and have a heaad-on collision, the is close to the same as one vehicle traveling 10 mph and hitting the other vehicle going 70 mph...severe impact.

you have to give it potential energy before it is kinetic

Kilometres per hour.

Pleading guilty to going 9 miles per hour over the speed limit means admitting to the offense of speeding in court. By doing so, you acknowledge the violation of traffic laws and accept the consequences, which may include paying a fine or facing other penalties such as points on your license.

At 20 mph, the average driver will travel approximately 88 feet before hitting the brakes. This accounts for the time it takes for the driver to perceive the need to stop and physically apply the brakes.

In "Driver: San Francisco", you cannot change the speedometer from mph to kph within the game's settings. However, you may find mods or external tools created by the community that can enable this feature. Be cautious when using third-party tools as they may impact the game's performance or violate the game's terms of service.

you have to times it by 1000000000000000 and then divide be 15 then times it by 2

It will travel 498 miles.

Nuclear energy is a kind of potential energy.

if that person look in a negative way to any others may cause disturbance in others body if said sitting person look to others with real smile then that may cause pleasure storm to body of others if a sitting person order to disturb the situations that can using eye energy and mouth energy he can convert into other way as he desire where as he is sitting

1 mile per hour is further than 1 km per hour

When you are accelerating and your vehicle is sputtering, it is usually a misfire in the engine. Meaning one of your spark plugs or wires is malfunctioning. A simple tune up will fix this problem. Sputtering caused by a misfire is usually accompanied by a jerking of the vehicle when Idle. IF you are at a stop sign and you let go of the brakes, your vehicle will start jerking forward on its own without pressing the gas. try a tune up.

"Rate of descent" is a speed; so the idea is to divide the distance by the time.

Work = force * distance

Work = 23N * 2.3 meters

= 53 Joules of work is done

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