Wednesday

August 27, 2014

August 27, 2014

Posted by **Sandhya** on Wednesday, April 22, 2009 at 10:40pm.

A) Calculate the work done by the force.

B) Calculate the angle between the vectors F and d.

C) Calculate the final speed of the object.

- Physics -
**drwls**, Thursday, April 23, 2009 at 1:44amA) The work done is the scalar product of the F and d vectors.

B) The cosine of the angle between the two vectors is the ratio of the scalar product (obtained in part (A)) to the product of the magnitudes os the F and d vectors.

C) I do not understand why the displacement is not in the direction of the force, since it starts out motionless and there is no friction

**Related Questions**

physics - A net external force is applied to a 13 kg object that is initially at...

physics - An object with a mass of 3.4 kg is originally at rest on a horizontal...

physics - power(3) - A force of 48 N pushes a 2 kg object initially at rest a ...

Physics - A force of 5 N causes the displacement of an object by 3 m in the ...

physics...PLZ HELP! =) - A constant force acts on a moving object. The object ...

physics - A constant force is applied to an object that causes a certain ...

Physics - A 20 N force acts on a 10 kg object parallel to the object's ...

Physics/Math - A single force acts on a 5.0 kg particle-like object in such a ...

physics - an object moves along a circle of radius r. its start froam A and ...

Physics - What term describes a force that causes an object to move in a ...