Kinematics

Potential energy is defined as mass × gravity × height because it represents the energy stored in an object due to its position above the ground. The mass accounts for the quantity of matter, gravity represents the acceleration due to gravity, and height indicates the distance the object is lifted from the ground. Multiplying these factors provides a measure of the potential energy stored in an object when it is raised to a certain height.

It will take 3.72 minutes to cover 556 feet at 1.7 mph.

If mass is doubled while velocity remains constant, the kinetic energy will also double since kinetic energy is directly proportional to the mass. This is because kinetic energy is calculated using the formula KE = 0.5 * mass * velocity^2.

Yes, driving 75 kilometers per hour is equivalent to approximately 46 miles per hour, which is still over the posted speed limit of 55 miles per hour. Therefore, you would likely still receive a speeding ticket for driving 46 miles per hour in a 55 miles per hour zone.

At 38 mph, you would be traveling at approximately 56 feet per second. This can be calculated by converting miles per hour to feet per hour (38 mph = 56 feet per second) and then dividing by 3600 to convert hours to seconds.

200 meters in 36 seconds equates to 12.43 miles per hour.

Yes. The angle is the direction of the vector, so if the angle changes, the direction changes.

The acceleration of a car moving with uniform acceleration will remain constant. This means that the rate of change of its velocity will be consistent over time, resulting in a steady increase or decrease in speed.

You can travel 325 miles in five hours driving at a speed of 65 miles per hour (65 mph x 5 hr = 325 miles).

It really depends on the draw weight and weight/type of arrows used, but a speed of about 150-190 feet/sec can be expected from most longbows.

The formula for calculate the energy with in a moving object is :1/2mv.v solution:m=2000 kg v=70 m/h = 70 x 1609.3 m/hr = 112649 m/hr = 112649 / 3600 m/s = 31.3 ms-1 energy=1/2 x 2000 x 31.32 Js-1 = 979690 J = 979.69 kJ

Mach is the speed of sound in that medium, and is known as Mach 1. It will vary according to pressure and temperature. [More correctly, it is the dimensionless number relating the speed of an object to that of sound in that medium.] Mach does not have units associated with it, such as mph or kmph.

112 kph are equal to 69.6 mph

60 kilometers (km) per hour is equal to about 54.7 feet per second.

To find the speed, first convert 7 minutes and 35 seconds to seconds only (455 seconds total). Then, divide the distance (2000 meters) by the time (455 seconds) to get the speed: 2000 meters / 455 seconds = 4.40 meters per second.

At the top of the track, the roller coaster has mostly potential energy due to its height above the ground. As it starts back down, this potential energy gets converted into kinetic energy as the coaster picks up speed.

Conversions first.

124 grains (1 gram/15.43 grains)(1 kilogram/1000 grams)

= 0.008036 kg

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A projectile is considered to be in free fall when the only force acting on it is gravity. This means that the object is not being propelled or pushed by any external forces, and it is only subject to the force of gravity causing it to accelerate downward.

1mi = 1.6km

35km/h x 1mi/1.6km = 22mi/h (rounded)

301 kilometers per hour is 187.03 miles per hour.

To convert 750 feet per second to miles per minute, first convert feet to miles by dividing by 5,280 (since 1 mile = 5,280 feet). Then convert seconds to minutes by dividing by 60 (since 1 minute = 60 seconds). So, 750 feet per second is equal to 0.142 miles per minute.

The friction of running car tires on a road primarily causes kinetic energy to be converted into heat energy. This heat energy is a result of the resistance that occurs between the tires and the road surface, ultimately leading to a loss of energy in the form of heat.

8 miles per hour is approximately equal to 12.87 kilometers per hour.

Sound is the movement of a medium at frequencies we can hear. As it always involves movement of a medium, either a solid, liquid or gas to be transmitted it will involve kinetic energy at times.

Note that kinetic energy is the energy stored in a moving mass. Sound waves carry energy with a combination of both kinetic and potential energy. There are two moments in every cycle where there is no movement and therefore no kinetic energy. These two points are at the upper and lower peaks of the wave.