Wiki User
β 14y ago22.5 kg
The work-energy theorem states:
Net work = change in kinetic energy
force x distance moved along the direction of the force= change in kinetic energy
Wnet = KEf - KEi = DKE.
Work= (30N)x(6m)x (cos0)=180J
final kinetic energy= 0.5(mass)(velocity^2)= 0.5x(4^2)x m
The initial kinetic energy is 0 (because the object is initially at rest, that is with zero velocity)
--> 180= 8m -0
m (mass)= 22.5 kg
Wiki User
β 14y agoIf an object does not move, no work is performed. Work is performed by a force acting through a distance.
If an object is rolling along a plane horizontal surface with no other forces acting on it, then rolled distance is directly proportional to the time taken.If an object is rolling along a plane horizontal surface with no other forces acting on it, then rolled distance is directly proportional to the time taken.If an object is rolling along a plane horizontal surface with no other forces acting on it, then rolled distance is directly proportional to the time taken.If an object is rolling along a plane horizontal surface with no other forces acting on it, then rolled distance is directly proportional to the time taken.
Just divide the distance by the time. (In this case, the speed in the answer will be in meters per second.)
rate x time = distance rate = distance / time rate = 500/25 Rate=20 meters per second
Speed = (distance traveled) divided by (time to cover the distance) Speed = (50 meters) / (2 seconds) Speed = 50 meters per 2 seconds Speed = 25 meters per second
An object traveling in one direction can be accelerated in another direction by applying a force in the desired direction. This force will cause the object's velocity to change, leading to acceleration in the new direction. The acceleration will depend on the magnitude and direction of the force applied.
When the net forces acting on an object sum to zero, the object is in a state of equilibrium. This means that the object's velocity remains constant, and there is no acceleration in any direction.
Accelerated motion (F=ma)
If an object does not move, no work is performed. Work is performed by a force acting through a distance.
The speed of an object depends on its distance traveled per unit of time. In simpler terms, it is determined by the rate of change of its position.
If the distance is not changing, the object is not moving. If the distance is increasing or decreasing linearly then the object is moving at a constant velocity. If the distance is increasing or decreasing parabolically then the object is being accelerated or decellerated.
Any object on which an unbalance force is acting will accelerate - i.e., its velocity will change.
When the Force increases on an Object, the Distance it travels INCREASES, as does its Velocity.
what velocity is a taint by an object that is accelerated at .3om/s for the distance of 54m if its initial velocity is 50m/s
I am not sure what you mean, but that's how our Universe works. If there is a net force acting on an object, its velocity will change - in other words, it will accelerate.
Acceleration depends on the mass of the object being accelerated and the net force acting on the object.
You can't tell from the information given. All you know is that the average acceleration is (change in speed) divided by (time for the change) = (6/8) = 0.75 meters per second2. The force required depends on the mass of the object to be accelerated by the force.