Kinematics

The work done by the cable is equal to the force applied by the cable multiplied by the distance it moves. The work done by the elevator is zero since it moves at a constant velocity, meaning there is no change in kinetic energy. The work done by the cable is equal to the force of gravity on the elevator multiplied by the distance it is lifted. Work = force x distance = (mass x gravity) x distance = (1380 kg x 9.8 m/s^2) x 29 m = 390,804 Joules.

The potential energy change can be calculated using the formula: ΔPE = mgh, where m = 0.40 kg, g = 9.8 m/s², and h = 0.07 m. Plugging in these values, we have ΔPE = 0.40 * 9.8 * 0.07 = 0.2744 J. The potential energy change is 0.2744 Joules.

On a accelerating body, Velocity and distance of an object are effected.

For a graph plotted with Acceleration to Time, it directly gives the acceleration at any given instant.

For a graph plotted with Velocity versus Time. The Slope at any instant would give the Acceleration. Or given the time frame, say A to B. Acceleration can be found out by subtracting velocity at A from velocity at B divided by the time frame A to B.

Changing the initial position on a position vs time graph has no effect on the velocity vs time graph. Velocity is the derivative of position. This means velocity only depends on the rate of change (slope) of position. Changing the initial position of an object has no effect on the slope. Mathematically, this is equivalent to adding a constant to a function. Since the derivative of a constant is always 0, a change in initial position has no impact on the derivative. Here is an example.

Say we have the position functions x(t)= 4+9t and y(t)= 27+9t.

then the velocity function of x would be x'(t)=v(t)= 9

And the velocity function of y would be Y'(t)=v(t)= 9

Energy due to position is potential energy, which is stored energy an object has because of its position in a force field. Energy due to motion is kinetic energy, which is the energy an object possesses due to its motion. Both forms of energy are important in understanding the behavior of objects and systems in physics.

In an isolated system, momentum is conserved. The total initial momentum is the sum of the momentum of Bicycle 1 and the momentum of Bicycle 2. Given the masses and velocities of the bicycles, you can calculate their momenta and add them together to find the total initial momentum of the system.

Kinetic energy is equal to one half the mass times the square of the velocity. Thus, changes in velocity and mass do not have the same effect on kinetic energy. If you increase the mass by a factor of 10 at the same velocity, you increase the kinetic energy by a factor of 10. However, if you increase the velocity by a factor of 10 at the same mass, you increase the kinetic energy by a factor of 100.

85 km/h is the same as about 52.8 miles per hour.

The maximum kinetic energy on an inclined plane occurs when the object reaches the bottom of the incline. This maximum kinetic energy can be calculated using the formula: KE = 0.5 * m * v^2, where m is the mass of the object and v is the velocity at the bottom of the incline.

92 mph = 134.93 feet per second

This question makes sense in the context of something like a pendulum. At the top of its swing, a pendulum is at maximum height, is not moving and so has zero kinetic energy, and has maximum potential energy since all its energy is potential. As it falls, it gradually moves with increasing speed, so its potential energy is being converted to kinetic energy. At the bottom of the swing, it is moving at maximum speed, and all its energy is kinetic, none is potential, Then it starts to move upwards again, and its kinetic energy is gradually converted back to potential energy.

The force will be multiplied by the ratio of the areas of the two pistons. In this case, the ratio of areas is 100 cm^2 / 10 cm^2 = 10. Thus, the force on the second piston would be 10 N * 10 = 100 N.

13 knots is a unit of speed used in navigation and aviation, equal to 13 nautical miles per hour. It is commonly used to measure the speed of watercraft and aircraft.

A distance-time graph can provide a pictorial indication of how far an object has moved. The slope of the graph represents the object's speed, where a steeper slope indicates faster motion. The area under the curve on the graph represents the total distance traveled by the object.

Yes, the acceleration due to gravity always points vertically downward, regardless of the direction of an object's velocity. This is because gravity is a force that attracts objects towards the center of the Earth.

When a person enters water, they must displace water molecules, which requires energy. This energy is taken from the person's kinetic energy, causing it to decrease. Additionally, water resistance slows down the person's movement, further reducing their kinetic energy.

Assuming that no net external forces are taking place, such as friction or air resistant, the only force acting upon the falling rock would be gravity. Using one of the kinematic equations, we can solve for the final velocity of the rock:

v(final) = v(initial) + at

We can substitute 0 for "v(initial)" since the rock is starting from rest. We can also substitute 9.81 meters per second squared for "a", which is the gravitational acceleration on Earth. Finally, we can substitute 9 seconds for "t". This gives us:

v(final) = 0 + (9.81)(9)

v(final) = 88.29 meters per second.

106 km/h is approximately 65.9 mph.

Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.

Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.

Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.

Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.

Yes, particles in the air have more average kinetic energy compared to particles in the mercury. This is because the air temperature is higher than the temperature of the mercury inside the thermometer, so the air particles are moving faster on average.

300,000 kph is approximately equal to 186,411 mph. This conversion can be done by multiplying the kph value by 0.621371.

You have converted potential energy to kinetic and then back to potential. If the marble came back exactly to its starting point you would have invented perpetual motion, but in fact it will lose a little energy in friction against the tube so it will gradually lose energy and eventually just stop at the lowest point of the tube.

The study of velocity, speed, and acceleration is called kinematics. Kinematics is a branch of physics that deals with the motion of objects without considering the forces causing the motion.