Kinematics

66.7 m/s2

Hang time is the amount of time an object remains in the air after being propelled upwards. It is often used in sports like basketball to describe how long a player stays in the air during a jump before reaching the peak of their jump and descending back to the ground.

To lift 100 kg at a distance of 100 cm from the fulcrum with an effort 100 cm from the fulcrum, you would need to apply a force of 100 kg in the opposite direction at a distance of 100 cm from the fulcrum. This is because the lever equation states that force x distance on one side of the fulcrum must equal force x distance on the other side.

no that is not true everybody knows that when something is moving it has k.e , wich means that it has kinetic energy and when is not moving its p.e potential energy so I dont see how acar has the less k.e when its moving the answers is it has the less p.e

The speed of a 90 mph pitch as it crosses the plate would likely be a little less than 90 mph, as there is air resistance and friction that can slow the pitch down slightly.

There is a very real possibility that hitting the head at 15 mph will have the same impact or worse as being hit with a sledge hammer. The outcome of this experiment truly depends on the size and force of the object hitting the head.

218 kph = 136.25mph

A body is moving at 218 kilometers per hour.

To find out how many miles will it move in the same amount of time, we will need to convert killometers into miles.

1 km = 1.6 miles

therefore 218 km = 218/1.6 miles = 136.25 miles.

Once a particular reference frame is established, whenever friction is observed between two objects, one of the objects speeds up as a result of the frictional force and one of the objects slows down with respect to that reference frame. Imagine a wooden block at rest on an ideal, frictionless surface. If you were to place something on top of the block and drag it across the surface of the block, the friction that resulted would cause the block to move. Since it started at rest and it ended in motion, it sped up as a result of a frictional force. In this example, since the non-frictional forces (the weight of the something you dragged along the top surface of the block) can only be exerted in the direction of the normal, the only force that is left that could possibly cause any movement of the block is due to friction.

115 km per hour = 71.5 mph (to 1 dp)

the bag of apples ........ the weights of the apples are acting in same direction so it is an example of parallel forces

40 miles per hour is approximately equal to 64.4 kilometers per hour.

Well ive gota 1998 that is stock that does around 109 ahah mph not kph

Running 100 meters in 12.5 seconds is equivalent to running at a speed of 22.4 miles per hour.

a = w2r = v2/r

where

a is acceleration

w is angular velocity

r is radius of orbit

v is velocity.

Both, if you refer to a flowing stream. The topographic elevation of the streambed above the base level toward which it leads (e.g., sea level) is indicative of the potential energy of the water in the river. (Another kind of potential energy is proportional to the water depth above the streambed.) The river's kinetic energy is proportional to the square of its current velocity and to the mass of moving water. Remember KE = (m v^2)/2 from physics?

If the river ceases to flow, for example enters a lake or impoundment, its kinetic energy will decrease to zero. Yet because of potential energy, its water may still have considerable energy.

Usain Bolt's fastest recorded speed is about 12.27 meters per second, achieved during his world record-setting 100m sprint in 2009.

108.53 feet per second at 74 miles per hour.

The sum of potential and kinetic energy is the total mechanical energy of an object. This total energy remains constant in the absence of external forces, according to the principle of conservation of mechanical energy.

An electric motor is the device that converts electric energy into rotational kinetic energy. It works by using magnetic fields to generate a rotational force, which causes a shaft to rotate and perform mechanical work.

Zero, assuming there is no air resistance. Gravity does not do work in the horizontal direction during the descent phase of projectile motion because the force of gravity and the displacement are perpendicular to each other, resulting in no work being done by gravity.

We know that energy is defined as the ability to do work.So an object has one joule of potential energy means that the body has capability to do a work of one joule.

We may say that the object with 1 joule of potential energy is the force field and our work is stored in displacing the object against the field

Cold temperatures decrease the kinetic energy of particles because they have less thermal energy to move around. As temperature decreases, the particles move more slowly, resulting in a reduction in their kinetic energy.

100 km/h= 62.1 mph.

The momentum of this case is equal to the summation of cross product of mass and velocity of both. How ever after the collision, some energy is converted into other form like sound and heat. This phenomena caused the momentum efficiency (e)

In this case (masses are equal), e is equal to the ratio of the velovities summation of both masses between after and before hitting each other.

e = ((V1'+V2')/(V1+V2));