When an object is moving with constant velocity, it means that there is 0 acceleration and hence no force and no work done .
Is work done dependent on speed?
No work done not depend upon the velocity of the body . its depend on the force applied and displacement of object .
What is constant speed?
Definition: When the speed of an object remains the same – it does not increase or decrease – we say it is moving at a constant speed.
What is an example of constant acceleration?
Constant acceleration refers to motion where the speed increases by the same amount each second. The most notable and important example is free fall . When an object is thrown or dropped, it experiences a constant acceleration due to gravity, which has a constant value of approximately 10 meters per second squared.
What goes at a constant speed?
Constant speed is also called as uniform rate which involves something travelling at fixed and steady pace or else moving at some average speed . For example, A car travels 3 hours.
Does constant speed mean no acceleration?
The velocity vector is constant in magnitude but changing in direction. Because the speed is constant for such a motion, many students have the misconception that there is no acceleration . ... For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating.
Does the work done depend on?
Answer. Work done depends on the force applied and the perpendicular distance between the fulcrum and the point of action of force . Both force and perpendicular distance are directly proportional to the work done.
Is work done dependent on initial velocity?
(D) initial velocity of the object. ... Here, F= force applied on the object, d= displacement and 0 is angle between force and displacement. So, the work done on an object does not depend upon the initial velocity of the object.
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.
What is the simplest type of motion?
The simplest form of motion is the motion in a straight line . The distance and displacement are the quantities used to determine the final position of the object with respect to the initial position.
Is constant speed and uniform speed same?
Constane speed and uniform speed are the same . Exactly same. Just the two different names. ... So, for constant speed the distance increases constantly, hence the graph would be a straight line.
What is the fastest possible speed in the universe?
But Einstein showed that the universe does, in fact, have a speed limit: the speed of light in a vacuum (that is, empty space). Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second) .
What does it mean if acceleration is constant?
Sometimes an accelerating object will change its velocity by the same amount each second . ... This is referred to as a constant acceleration since the velocity is changing by a constant amount each second.
What is constant acceleration formula?
If we assume that the rate of change of velocity (acceleration) is a constant, then the constant acceleration is given by. Acceleration=Change in velocityChange in time. More precisely, the constant acceleration a is given by the formula. a=v(t2)−v(t1)t2−t1 , where v(ti) is the velocity at time ti.
What is a negative acceleration?
If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration). ... The acceleration-time graph shows a horizontal line in the negative region of the graph (meaning a negative acceleration).
Is constant acceleration constant speed?
Traveling with a constant velocity means you’re going at the same speed in the same direction continuously. If you have a constant velocity, this means you have zero acceleration . ... If you travel with a constant acceleration, your velocity is always changing, but it’s changing by a consistent amount each second.
