Determine a unit vector that is perpendicular to both 

An airplane is travelling due north at an airspeed of 250 km/h when it encounters a wind from the west. The resultant ground speed is in a direction N20oE.  What is the rate at which the wind blows?

A 50 N force is applied at the end of a 30 cm wrench.  If the force makes an angle of 67o with the wrench, what is the magnitude of the torque about the point of rotation?

Calculate the amount of work done when a sleigh is pulled 50 m by a force of 30 N applied at an angle of 30o with the ground.

Explain why three forces of magnitudes 4 N, 5N, and 10 N cannot produce equilibrium.

Calculate the amount of work done when a sleigh is pulled 50 m by a force of 30 N applied at an angle of 30o with the ground.

Explain why three forces of magnitudes 4 N, 5N, and 10 N cannot produce equilibrium.

What is the only food that cannot go bad? 

What is the most visited tourist attraction in the world? 

Which photographic technique uses multiple flashes while the shutter remains open?