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When work done is maximum and minimum?

Author

Ava White

Updated on February 22, 2026

When work done is maximum and minimum?

If the applied force is in one direction and the displacement of the body is in the opposite direction, then work done is minimum as COS 180 is equal to minus one. This is the minimum possible work done and work done is maximum when force and displacement are in the same direction.

Hereof, which work done is maximum?

This means that when the force is applied on a body and the displacement of the body takes place in the direction of the force applied then work done is maximum. So when theta=0°, work done is maximum.

Also, for what value of zero is work done maximum? When theta is 0 degree, work done is maximum and when theta is 90 degree, work done is minimum (zero).

Also asked, what should be the angle between the force and the displacement for maximum and minimum work?

The angle between force and displacement should be θ = 90° for minimum work. The angle between force and displacement should be θ = 0° for maximum work.

What is zero work done?

ZERO WORK:The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero. example: When we hold an object and walk,the force acts in downward direction whereas displacement acts in forward direction.

What does doing work mean when it comes to physics?

In physics, work is the product of force and displacement. A force is said to do work if, when acting, there is a movement of the point of application in the direction of the force. Work transfers energy from one place to another, or one form to another.

What are the conditions for maximum work done by the system?

1) any change taking place in it is thermodynamically reversible. 2) the change in the system takes place in an infinite number of steps. 3) the driving force of the change is infinitesimally greater than the opposing force. 4) the system is in mechanical equilibrium with its surroundings.

In which situation is maximum work considered to be done by a force?

Answer: Work done is maximum when the movement of object is in line and direction of force.

What are the conditions for work to be done in science?

Science, however, has one standard definition for work. Two conditions must be met in order for work to be done on an object. The first is that the object moves. The second is that a force must act on the object in the direction the object moves.

What should be the angle between force and displacement such that we obtain negative work?

Answer is D.
Work done can be positive,negative and zero. When a body is being lifted in the upward direction, the force of gravity is acting in the downward direction. But, the displacement of the body is in the upward direction. Hence for negative work done, angle between force and displacement is 1800.

When the angle between the force and displacement is 0?

Answer:Work done =0, when angle between 2 objects is 90 degree.

What does it mean when work is positive?

POSITIVE WORK :the work done on an object is said to be positive work when force and displacement are in same direction. example: When an object moves on horizontal surface,force and displacement acts in forward direction. So,work done is positive.

What should be the angle between the direction of force and the direction of motion of a body so that the work done is zero?

Answer: angle should be 90° between the direction of force and the direction of motion of a body as work done is equal to force multiplied by displacement multiplied by cosx. and here X=90° so cos90°= 0 so the overall work done will be zero.

What is negative work?

Negative work occurs when the force acting on an object is opposite in direction to the displacement. So when you lower the book, you are applying an upwards force to it, but its displacement is downwards.

Why is no work done in an isochoric process?

As the gas inside the spray can heats up, its pressure increases, but its volume stays the same (unless, of course, the can explodes). Because volume is constant in an isochoric process, no work is done. Because the volume change is zero in this case, the work done is zero.

What would be the work done if the displacement of an object is zero?

If the displacement of the object is zero, then one can calculate the work done by each individual force, the work done by each force is zero. Work is not defined in terms of what would have happened to the object in the absence of other forces; it is defined in terms of the motion that actually occurred.

When the work is said to be done?

Definition Of Work. "Work is said to be done when an object moves (displaces) along the direction of application of force." OR The work is defined as force displacement.

For what value of theta is work done maximum?

When theta is 0 degree, work done is maximum and when theta is 90 degree, work done is minimum (zero). This is because, cos 0 = 1 and cos 90 = 0.

What is the formula of work?

The work is calculated by multiplying the force by the amount of movement of an object (W = F * d). A force of 10 newtons, that moves an object 3 meters, does 30 n-m of work. A newton-meter is the same thing as a joule, so the units for work are the same as those for energy – joules.

What is the formula of energy?

The formula that links energy and power is: Energy = Power x Time. The unit of energy is the joule, the unit of power is the watt, and the unit of time is the second.

How does force work?

Force is the push or pull applied on an object. When force is applied on an object, resulting in the movement of that object, work is said to be done. Work can be calculated using the formula, Work done is equal to Force into Distance. The ability or the capacity to do work is called energy.

What are the units for work?

Units. The SI unit of work is the joule (J), which is defined as the work expended by a force of one newton through a displacement of one metre.

What is the formula for mechanical advantage?

The mechanical advantage (MA) would be the ratio of of the distance from the applied force to the pivot point divided by the distance from the load point to the pivot point. The mechanical advantage formula is MA=D/d.

Is work a vector?

Work is a scalar because it is the "dot" product of 2 vectors, also called the scalar product. W can also be expressed in terms of the components of the force and displacement vectors. Work is a vector because you multiply a force (a vector) by distance (a vector).

How do you calculate work output?

The formula calculating work output is F*D/T, where F is the force exerted, D is the distance and T is the time. The work output of a system is also described as its Power. In order for work to be done, force has to be applied in the direction of the motion. Using this, work is calculated as Force * Distance.

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