Determine resultant analytically by applying the cosine law

Reference no: EM13677262

1) Two forces of 2 and 3N, respectively, make an angle of 50 degrees with each other. Determine the resultant analytically by applying the cosine law, namely, R^2= A^2 +2AB cos (theta) + B^2, where A and B are the two forces and R is the resultant?

2) If the two forces in the question 1 make an angle of 90 degrees with each other, discover the resultant. To what form does the cosine law reduce in this case?

Reference no: EM13677262

Questions Cloud

A water supply maintains a constant rate of flow for water : A water supply maintains a constant rate of flow for water in a hose. You want to change the opening of the nozzle therefore that water leaving the nozzle reaches a height that is nine times the current maximum height the water reaches with the nozzl..

Glob-block combination will move immediately after collision : A .120 kg child is standing at rest on a frozen pond. The child throws a 1.5 kg block initially at rest on a level frictionless surface. What is the speed by which the glob-block combination will move immediately after the collision?

Child is standing at rest on a frozen pond : A 12.0 kg child is standing at rest on a frozen pond. The child throws a 1.25 kg block horizontally to the east by speed 4.00 m/s. What is the 2the ice is slippery (no friction)? Include magnitude and direction.

Electric potential energies of the charge at the two points : An electric force moves a charge of +2.00E-4 C from point A to point B and performs 5.81E-3 J of work on the charge. What is the dissimilarity (EPE A – EPE B) among the electric potential energies of the charge at the two points?

Determine resultant analytically by applying the cosine law : Two forces of 2 and 3N, respectively, make an angle of 50 degrees with each other. Determine the resultant analytically by applying the cosine law, namely, R^2= A^2 +2AB cos (theta) + B^2, where A and B are the two forces and R is the resultant?

Direction-magnitude of the vector sum of the electric forces : In table salt-sodium chloride, NaCl-the Na+and Cl^- ions are arranged in a cubic crystal structure. You can observe in this structure a cube made up of eight ions: four Na^+ and four Cl^- in alternating corners.

What is the resultant speed relative to the shore : A boat capable of making 6.0 km/h in still water is utilized to cross a river flowing at speed of 4.0 km/h. The boat is directed (from the perpendicular to the shore) in such a way that its resulting motion is straight across the river.

What is the magnitude of the charge on each plate : A small plastic ball of mass 9.75×10-3 kg and charge +0.198C are suspended from an insulating thread and hangs among the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0o with respect to the..

Decide the resistance of the wire in ohms : Consider a wire with resistivity of 5.2x10-7? m, a diameter of 7.50 mm, and a length of 27 m. Decide the resistance of the wire in ohms (?). Round your answer to three important figures.

User Account

All Pages