Can the work done be zero for non zero force and displacement give reason?

Zero work is done when the displacement of a body is zero or perpendicular (θ=900,cosθ=0) to the direction of force applied, then work done is zero. However, the displacement is in the horizontal plane. Thus, the force applied and the displacement are in perpendicular directions. So, the work done is zero.

Can the work done be zero even when the force and the displacement both are nonzero if yes how?

Mathematically Work = F * d * cosθ where F is the applied force, d is the displacement and θ is the angle between force and displacement. At any angle aside from 90 degrees and 270 degrees the work done is not zero if both F and d are nonzero.

What is work Theta formula?

Mathematically, work can be expressed by the following equation. W = F • d • cos Θ where F is the force, d is the displacement, and the angle (theta) is defined as the angle between the force and the displacement vector.

Can work be done without force?

Answer: If there is no motion in the direction of the force, then no work is done by that force. But the work done on the box is zero since by moving in a straight line at constant speed, its energy is remaining the same.

What is the work done when the force is zero and what is the work done when the displacement is zero?

Any force times zero is zero so a vanishing displcement means zero work. workdone=force×displacement. Since the displacement is zero,the force acting is also zero. Hence the workdone is zero.

What is the work done by the force F?

The work done by a constant force of magnitude F on a point that moves a displacement d in the direction of the force is the product: W = Fd.

Can work be done without displacement?

If there’s no displacement, there’s no work done. Work without displacement is zero. The force of gravity pulls down on the item, you are holding.

Why work done is F cos theta?

so when the angle between the force and movement is 0 (they are parallel), work done is maximum. This is the equation because work can only be done in the direction of movement, so cos(theta) extracts the component of the force being applied that is in the direction of movement.

What is F sin theta?

The F-sin(theta) lens is such a device which can be used in various grating based devices to improve the performance. These F-sin(theta) lenses present satisfactory distortion characteristic and have an improved correction for the curvature of image plane. F-sin(theta) lens will be also name F-lambda lens.

Is required to do work?

Work Example In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force. For the special case of a constant force, the work may be calculated by multiplying the distance times the component of force which acts in the direction of motion.

How do you find the angle theta in the work equation?

The angle theta in the equation is the angle between F and d. If the F is parallel to the incline and the d is parallel to the incline, then the angle theta in the work equation is 0 degrees. For this reason, W=F*d*cosine 0 degrees. In each case, the work is approximately 1.18 x10 6 Joules.

How to calculate the amount of work done on an object?

The amount of work done upon an object depends upon the amount of force (F) causing the work, the displacement (d) experienced by the object during the work, and the angle (theta) between the force and the displacement vectors. The equation for work is W = F*d*cosine(theta)

What is the angle theta for lifting a 784-newton person?

To lift a 784-Newton person at constant speed, 784 N of force must be applied to it (Newton’s laws). The force is up, the displacement is up, and so the angle theta in the work equation is 0 degrees.

How much work is done when a 2kg object is pulled upward?

No work is done. An approximately 2-kg object is pulled upward at constant speed by a 20-N force for a vertical displacement of 5 m. F grav and F tens do work. Forces do work when there is some component of force in the same or opposite direction of the displacement. 3.