Question

If the angle between applied force and the direction of the displacement of the object is an acute angle, then is the work done positive or negative? Also, comment about the direction of energy transfer (weather to the object or from the object ) please answer fast ​

Answer 1

Answer:

If a force is applied to an object which is less than 90° then the work is done in a positive way. We know, W = F.Scos∅, if it is less than 90° then it will be positive. And energy transfer i.e. p = √ (2mE), E = p² / 2m will also be positive.