Kinetic Energy is the energy of motion, so anything that is moving has kinetic energy.
Examples :
a ball rolling down a ramp
a spoon falling off a table
a Baseball hurtling towards a window
a moving train
a coin falling from the roof of a building
(generally anything with a rest mass which isn't at rest)
An object at ground level. Or at whatever height you chose as reference level.
An object at ground level. Or at whatever height you chose as reference level.
An object at ground level. Or at whatever height you chose as reference level.
An object at ground level. Or at whatever height you chose as reference level.
A box that i just sitting in a fixed position, or in other words, not being moved.
A car moving with 40 miles per hour and not changing that speed.
That would be any object that is above a reference level (often this is the ground level), and doesn't move.
A person walking in a straight line at a constant speed would not be accelerating. A person standing still in one spot would not be accelerating.
An object at ground level. Or at whatever height you chose as reference level.
My car when it's parked at the curb.
If the forces acting on an object are perfectly balanced, the resulting net force is equal to zero.
What do you mean.If u mean gravitational force then gravitational force never changes in physics it is consider -9.8N the negative meaning downward and (N) meaning newtons, which is a force. Yet if you mean weight then that would be F=MA which is force equals mass x acceleration and in a free body digram that doesn't have a natural force or tension or in other words free falling then the force acting on it would be the kilograms which is represent as mass x the acceleration which would be represented as gravity. that would give you the force downward. which coincidently is your weight.
Air, Sonny D 😛
You and I stand on opposite ends of a small car.You are in the back, pushing it forward with a force of 100 pounds. I am in the front, pushing it backward with a force of 100 pounds.I don't know what the "force" on the car is. Is it 200 pounds, 100 each from you and me ? Do we also have to add in the weight of the car ... another 2,000 pounds of gravity pushing it downward ? How about the reaction force of the pavement ... another 2,000 pounds pushing it upward ? I don't know.But I do know the net force on the car ... it's zero. The two horizontal forces on it cancel each other, because they're directed in opposite directions. Same for the vertical forces. Which is why the car doesn't accelerate in any direction ... because the net force in that direction is zero.
Since the bed is uniform we can assume that each leg carries exactly 1/4 the total force. Force is equal to mass times the acceleration of the object. The bed, hopefully being at rest, is only effected by gravity. So its acceleration is 9.8 m/s2 downward. F = 45Kg * 9.8 m/s2 This will give you an answer in Newtons (Kg*m/s2) then divide by 4.
If the forces acting on an object are perfectly balanced, the resulting net force is equal to zero.
yes
it is an object that gets a bump to its object (=
In that case, the forces are said to be unbalanced.
An example is a hat sitting on someone's head.
Avalanche
Displacement divided by time will give you the motion of an object that has no unbalanced force acting on it
Gravity is the force that attracts two masses together. Weight on Earth is the force of gravity acting upon an object on Earth. The formula for force is: F=ma -or- Force=mass x acceleration So, multiplying an object's mass by its acceleration due to gravity (9.8m/s2 on Earth) will give you the measurement of the force of gravity acting upon the object, also known as the object's weight.
Consider a basketball rolling across the floor of the gym. Maybe that's not a great, impressive example. But it's important to jump in here and point out that nobody ever said that an object is motionless in the presence of balanced forces. The principle is that an object experiences no acceleration without a net force acting on it, and that without a net force ... with all forces 'balanced' and adding up to zero ... the object remains in constant, uniform motion, i.e. without acceleration.
unbalanced forces cause acceleration, an object in freefall has gravity as an unbalanced force.
When you are traveling up an incline.
Net force is the amount of force that is making the object change direction or motion. For example : the net force on someone standing on the floor is zero, even though gravity is exerting a force on them. It's because their legs are providing the same amount of force in the opposite direction, causing them to not crash through the floor.