Determine the components of the support reactions at A and the tension in the cable BC. A B 2.5m 2.5m 2.4 KN

Two forces are applied to a car in an effort to move it, as shown in Figure P4.12. (a) What is the resultant vector of these two forces? (b) If the car has a mass of 3 000 kg, what acceleration does it have? Ignore friction. Figure P4.12

In the movie Garden State, one of the characters uses a bow to launch an arrow straight up into the air. The arrow travels straight up, stops momentarily, and then comes straight down along the same path. The graph of its position versus time is a parabola. What can be said about the sum of the forces on the arrow?

A net force ___. (3.1) (a) can produce motion (b) is a scalar quantity (c) is capable of producing a change in velocity (d) both (a) and (c)

An object falling under the pull of gravity is acted upon by a frictional force of air resistance. The magnitude of this force is approximately proportional to the speed of the object, which can be written as f = bv. Assume b = 15 kg/s and m = 50 kg. (a) What is the terminal speed the object reaches while falling? (b) Does your answer to part (a) depend on the initial speed of the object? Explain.

What forces cause (a) an automobile, (b) a propeller-driven airplane, and (c) a rowboat to move?

•When two people push in the same direction on an object ofmass m they cause an acceleration of magnitude a1. When thesame people push in opposite directions, the acceleration of theobject has a magnitude a2. Determine the magnitude of the forceexerted by each of the two people in terms of m, a1, and a2.

1) An object with a force accelerates as shown in the equations: (the picture)   What must ay be with the following information? Fx = 300 N Fy = 170 N ax = 27 m/s2

a. Find the acceleration of the crates. answer in m/s^2 b. Find the tension in the rope connecting the two crates. answer in N c. If the crates are initially at rest, how far do they move in the first 3.00 s? answer in m

1.At the bow of a ship on a stormy sea, a crewman conducts anexperiment by standing on a bathroom scale. In calm waters,the scale reads 182 lb. During the storm, the crewman finds amaximum reading of 225 lb and a minimum reading of 138 lb.Find (a) the maximum upward acceleration and (b) the maximum downward acceleration experienced by the crewman. Graph and Explains.