No, work done by force at any instant does not depend upon the velocity at that instant.
Work is dependent on the force and displacement
. Two identical ball bearings in contact with each other and resting on a frictionless table are hit head-on by another ball bearing of the same mass moving initially with a speed V.
Does speed affect work done?
If the object’s speed increases, then
its kinetic energy will increase
. … Since the Work/Energy Equation guarantees that the work done equals the change in kinetic energy, the work done must be positive.
When you perform work, it
generates kinetic energy
. The mass and velocity of an object impact how much kinetic energy it has. Equating work and kinetic energy allows you to determine velocity from force and distance. … For example, the square root of 28.6 equals 5.3, so the velocity is 5.3 m/s.
Does work done depend on distance?
When you do work on an object,
the same amount of work is taken away from you
. Thus, the total amount of work that has been done (or could be done) inside a system remains a constant amount.
How does speed and position affect energy?
The faster an object moves,
the more kinetic energy it has
. The more mass an object has, the more kinetic energy it has.
How can speed be calculated?
Speed tells us how fast something or someone is travelling. You can find the average speed of an object if you know the distance travelled and the time it took. The formula for speed is
speed = distance ÷ time.
Is the rate at which work is done?
Power
is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation. The standard metric unit of power is the Watt.
What force can change?
Force can cause an object to move or accelerate, to slow down or decelerate, to stop or to change its direction. The applied force can be a
push
, a pull or dragging of an object.
Why work is force times distance?
Work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. … If the force is being exerted at an angle θ to the displacement, the work done is
W = fd cos θ
.
How does speed affect kinetic energy?
It turns out that
an object’s kinetic energy increases as the square of its speed
. A car moving 40 mph has four times as much kinetic energy as one moving 20 mph, while at 60 mph a car carries nine times as much kinetic energy as at 20 mph. Thus a modest increase in speed can cause a large increase in kinetic energy.
What abilities do you have working?
- Positive attitude. Being calm and cheerful when things go wrong.
- Communication. You can listen and say information clearly when you speak or write.
- Teamwork. …
- Self-management. …
- Willingness to learn. …
- Thinking skills (problem solving and decision making) …
- Resilience.
What factors affect the energy of the ball?
The amount of Kinetic Energy that an object possesses is dependent on two factors:
mass and velocity
. Both of these factors are directly proportional to the kinetic energy.
What is constant speed?
An object is travelling at a steady or constant speed
when its instantaneous speed has the same value throughout its journey
. For example, if a car is travelling at a constant speed the reading on the car’s speedometer does not change.
What was my average speed?
The most common formula for average speed is
distance traveled divided by time taken
. The other formula, if you have the initial and final speed, add the two together, and divide by 2.
What is difference between speed and velocity?
The reason is simple. Speed is the time rate at which an object is moving along a path, while velocity is
the rate and direction of an object’s movement
. Put another way, speed is a scalar value, while velocity is a vector.
What are the 3 equations for power?
We now have three equations for electrical power, with two derived from the first using the Ohm’s law equation. These equations are often used in problems involving the computation of power from known values of electric potential difference (ΔV), current (I), and resistance (R).
