Problem 1: An accelerometer - a device to measure acceleration - can be as simple as a small pendulum hanging in the cockpit. Suppose you are flying a small plane in a straight horizontal line and your accelerometer hangs α = 14.4° behind the vertical, as shown in the figure below. http://aycu34.webshots.com/image/16073/2004469205105297433_rs.jpg What is your acceleration at that time? in the direction of motion I figure you use F=MA for this, but there is no mass given... i dont even know where to begin, seeing that the only thing given is the angle. Problem 2: A fire helicopter carries a 561 kg bucket of water at the end of a 24.9 m long cable. Flying back from a fire at a constant speed of 43.6 m/s, the cable makes an angle of 48.4° with respect to the vertical. Determine the force of air resistance on the bucket. This is like the last problem, i was able to find all the sides of the triangle which is made by the weight, but dont know what to do now. And Problem 3: A 2016-kg elevator moves with an upward acceleration of 1.86 m/s2. What is the tension in the cable that supports the elevator? I used F=MA but it said the answer was wrong. Thanks for the help.