0
Interesting question. But when the object is at rest the potential energy of the object is 0, on the surface that is. When it is on a height h it's potential energy increase and when it is dropped from that height all that potential energy gets converted to kinetic energy just before hitting the ground. This extra force comes from this kinetic energy.
What else can I help you with?
What is the value of acceleration for a body?
Acceleration means how fast the body's velocity changes - in symbols, dv/dt. Average acceleration during a certain time is equal to (change in velocity) / (time elapsed). Since you are dividing a velocity by a time, the standard unit for acceleration is (meters / second) / second, but this is normally written as meters / second squared.
What is temperature fluctuation?
Temperature fluctuation is where the temperature does not stay at a constant rate. It will keep getting colder or warmer and not cease to a certain degree.
How does a thermometer keep your home at a constant temperature?
It doesn't A thermometer doesn't keep your home at a certain temp. a thermometer tells the temp. of a place.
How can you determine the amount of force exerted?
To find the force on an object, you multiple the mass of the object by its accelerationFor example, let's say a ball is moving at 7 m/s squared and has a mass of12 kg.The formula for force is: F = maF = 12 kg x 7 m/s squaredF = 84 N ( the unit for force is N, which is Newtons)*Be careful, an object does not "have a force". A force is an action that can modify the shape of an object and/or modify its velocity. Therefore, you do not calculate the force of an object, but the force required to give it a certain acceleration.
Force equal mass newton's laws?
Force equals mass times acceleration, F=ma (m=mass, a=acceleration) in his original theory, force equals change in inertia over time, F=P/dt, (where p=mv or inertia, t=time, d=delta, change in) hence, substituting, F=mv/dt, but as v=meters per second, and acceleration is meters per second square, you get F=ma
A cart of a certain mass has a certain net force exerted on it and its acceleration is 4 ms2 what happens to the acceleration if the cart's mass doubled force?
If the cart's mass is doubled, its acceleration would be halved if the force remains constant. This is because acceleration is inversely proportional to mass, so an increase in mass would result in a decrease in acceleration when force is held constant.
Can a body moving with certain velocity in the direction of east have acceleration in the direction of west?
Yes, a body moving with a constant velocity in the east direction can still have acceleration in the west direction if an external force is applied in that direction. Acceleration is the rate of change of velocity, so even if the velocity is constant, a change in direction or magnitude of the velocity can still result in acceleration.
How can one determine the distance traveled by an object based on its acceleration?
To determine the distance traveled by an object based on its acceleration, you can use the formula: distance 0.5 acceleration time2. This formula calculates the distance traveled by an object with a constant acceleration over a certain period of time.
Why do engine looses acceleration after a certain speed?
Acceleration is the a change in speed or direction. Once a vehicle reaches a point where it is maintaining its speed but no longer increasing (or decreasing) the acceleration is zero. Even though you may be moving rapidly it is at a constant speed.
How do you calculate the acceleration of gravity?
The acceleration of gravity can be calculated using the formula a = 9.81 m/s^2, where "a" represents the acceleration due to gravity. This value is a constant for objects falling in Earth's gravitational field.
Can you be accelerating if you are traveling at constant speed?
Velocity is speed in a certain direction. You can keep speed the same, and if you change direction then you have changed velocity.
When will the average acceleration be equal to instantaneous velocity?
Never.Average velocity is total displacement (final position minus initial position) divided by the total time: vave = (xf-xi)/tAcceleration is the rate at which your velocity is changing or change in velocity over time: a= (vf-vi)/tThese two quantities may have the same numerical value but will never have the same units.Average velocity for a trip can equal instantaneous velocity at a certain point during the trip, however, at any time during a trip in which the velocity is constant or at half way through the total time of a trip where the acceleration is constant.
How does acceleration affect displacement?
If a body travels at a constant speed it will travel a certain distance (doesn't matter how far for our purposes). If it's accelerating then its speed is constantly increasing and therefore it covers more distance over every increment of time that it would if it were moving at its initial speed. So, acceleration increases displacement.
What happens to the motion of an object if you change the mass of the object but keep the net force constant?
If you increase the mass of an object while keeping the net force constant, the acceleration of the object will decrease. This is because acceleration is inversely proportional to mass when force is constant (Newton's second law). Therefore, the object will move more slowly or take longer to reach a certain speed.
What does acceleration is uniform mean?
It means that the acceleration does not change.
Describe a situation in which the car has zero speed but has a definite acceleration?
An object moving at constant speed in a circle. Acceleration is rate of change of velocity, as velocity is speed in a certain direction, when moving in a circle an object's velocity is constantly changing, as its velocity is changing it is accelerating.
When will you say a body is in uniform acceleration?
uniform acceleration mean that the acceleration doesn't change over the course of time of the time considered for a certain
