A flatbed truck is carrying a 20.0-kg crate along a level road. The coefficient of static friction between the crate and the bed is 0.400. What is the maximum acceleration that the truck can have if the crate is to stay in place? (A) 3.92 m/s2 (B) 7.84 m/s2 (C) 8.00 m/s2 (D) 78.5 m/s2 (E) 196 m/s2

What is the most useful equation for electric power?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s. assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.