Kinematics

mph means miles per hour

just record how long it takes to go one mile.

If you walk for a mile and it takes 30 minutes then your speed for that mile was 2 mph.

If you walk for a mile and it takes 15 minutes then your speed for that mile was 4 mph.

... lets do a crazy one... If you walk for a mile and it takes 23 minutes and 30 seconds then your speed for that mile was 2.55 mph.

The math is simple. If your time is in minutes just take 60 minutes and divide into that the total amount of minutes you took to walk a mile.

So the calculations for the three examples would be...

60 / 30 = 2 mph

60 / 15 = 4 mph

60 / 23.5 = 2.55 mph

(23 minutes and 30 seconds is the same as 23 and a half minutes)

Volume is a scalar quantity because it only has magnitude and no direction associated with it. It is simply a measure of the amount of space occupied by an object and does not have a specific direction in which it acts.

orbits occur if either a ring of asteroid rock and dust collects into a ball, or a body travelling a a high velocity passes by the larger body and is pulled in by the gravitational field. I this case, the velocity is required to produce central fugal force on the object, otherwise it will be pulled into the larger body.

When the flood gates of a dam open, the potential energy of the water stored behind the dam is converted into kinetic energy as the water flows downstream. This change in potential energy to kinetic energy allows the water to generate electricity as it passes through turbines in the dam.

Force times distance divided by time is equal to power. Power is the rate at which work is done or energy is transferred per unit of time. It is measured in watts (W) in the International System of Units (SI).

One is a weight on an elastic string, bobbing up and down. Each down/up involves potential-kinetic-elastic-kinetic-potential conversions.

A transfer would also include placing a heavy weight on a spring-loaded platform. The reduced gravitational potential of the weight is stored as compression energy in the spring, which will rebound if the weight is removed.

In a closed system, the total energy (kinetic + potential) remains constant, following the principle of conservation of energy. As kinetic energy increases, potential energy decreases, and vice versa. This continuous exchange between kinetic and potential energy allows the system to maintain a constant total energy.

Static friction does not apply when the block is already moving. Without friction, the force on the block parallel to the surface of the incline is Fg*sin(angle), so the acceleration without friction is 9.8* sin(30) = 9.8 * (1/2) = 4.9

Since it is accelerating at 3.2, friction is slowing down the block by (4.9-3.2 = 1.7). The coefficient of kinetic friction is (1.7/4.9) = 0.346939

To calculate the speed in miles per hour, you can divide the distance traveled by the time taken. In this case, 169 miles divided by 3 hours and 30 seconds (converted to hours) would give you the speed in miles per hour.

Yes, a non-moving train has potential energy stored in its position due to gravity. This potential energy can be converted into kinetic energy when the train starts moving.

To convert kilometers per hour (kph) to miles per hour (mph), you can multiply the speed in kph by 0.62137. For example, if a vehicle is traveling at 100 kph, it would be equivalent to approximately 62.14 mph.

Assuming you mean its range is 10m, then use the equation:

v0 = sqrt(r*g/sin(2θ)), where r is its range, θ is its initial angle, and g is acceleration from gravity.

=sqrt(10m*9.8m/s2/sin(90))

=sqrt(98.0m2/s2)

=9.9m/s

The slope of the instantaneous speed-vs-time graph represents the acceleration of the object. A positive slope indicates the object is accelerating in the positive direction, while a negative slope indicates acceleration in the negative direction. The steeper the slope, the greater the magnitude of the acceleration.

KE = 1/2mass velocity squared

KE = 1/2mV^2

80 J = 1/2(10 kg)V^2

multiply through by 2

160 = 10V^2

divide by 10, both sides

16 = V^2

take square root each side and discard negative answer

Velocity = 4 m/s

The large object moving at 25 mph would have more kinetic energy compared to the small object, assuming they have the same mass. Kinetic energy is dependent on both mass and velocity, so in this case, the larger object would have more kinetic energy due to its greater mass.

No, a velocity graph does not indicate where to start. It provides information about the speed and direction of an object's motion at different points in time but does not specify the initial position of the object.

No. Without friction or air resistance, no force is required to keep an object moving

at a constant velocity.

Also, by the way, just thought we should mention: In deep space, the ship has no weight.

Relationship between work and kinetic energy. Work is defined as the result of a force moving an object a distance and is stated by the equation W=Fd. But the result of the force being applied on the object also means that the object is moving with some given velocity, according to the equation for force as F=ma. From those two equations, it can be shown that work is equivalent to kinetic energy

Kinetic Energy =1/2mv2

A car would have the most potential energy when it is at its highest point or at the top of a hill. This is because potential energy is height-dependent, and the higher an object is above the ground, the greater its potential energy due to gravity.

The slope of the tangent line in a position vs. time graph is the velocity of an object. Velocity is the rate of change of position, and on a graph, slope is the rate of change of the function. We can use the slope to determine the velocity at any point on the graph.

This works best with calculus. Take the derivative of the position function with respect to time. You can then plug in any value for x, and get the velocity of the object.

Air resistance decreases the acceleration of a falling leaf from a tree. As the leaf falls, air resistance opposes its motion, slowing it down. This results in a lower acceleration compared to if the leaf were falling in a vacuum with no air resistance.

Yes, velocity is the rate of change of an object's displacement over time, while acceleration is the rate of change of an object's velocity over time. Velocity indicates how fast an object's position changes, while acceleration describes how the velocity of an object changes over time.

The slope indicates speed (magnitude of velocity). For instance, if time is plotted

on the X axis and distance on the Y axis, then the steeper the slope, the higher

the speed. That is to say that more distance is covered in less time - and, of course,

vice versa for a lower slope.

Yes, using your momentum can help you jump farther by allowing you to generate more power and speed as you take off. By coordinating your movements and timing your jump with your forward momentum, you can propel yourself farther with greater distance.