List three factors that impede acceleration or deceleration.

Two roads are intersecting at a point of chainage 1250.000 meters. The angle of deflection is 30 degrees. A curve of a radius 100.000 is suggested by a civil engineer. Draw the curve and illustrate all the elements of the curve. Calculate the required information needed to set out the curve on the field. B X2 x2 I

The traffic light below consists of a rigid pole and rigid arms. Since the pole and arms are rigid, the force and moment due to the weight of the traffic lights are transferred to the foundation support at point O. The foundation support at O is embedded securely in the ground. 25 A 35' 25 B 100 lb 100 lb 100 lb How many total forces and moments is the foundation support at point O capable of exerting on the pole? six three two one 660

A particle moving in the x-y plane has a position vector given by r = 1.95t2i + 0.56t3j, where r is in inches and t is in seconds. Calculate the radius of curvature ρ of the path for the position of the particle when t = 2.3 sec. Sketch the velocity v and the curvature of the path for this particular instant. Answer should be ρ=________ inches