Dynamics GE202 home work Due in one week KSU动学ge202家工作一星期后到期KSU.docVIP

Dynamics GE 202 ----2nd Sem. 1430/1431 ??????? ???? ????????? ???????? ????? ?????????? ??? 202: ?????? ???????? ??? ???? ?????? ??? ???? ???????? ????? ?????? ??????? ??????? ???????? ?? ??????? ?? ??? ??????? ???????? ?? ???? ???? ?????? ??? ????? ?? ?????? ?? ???????? ?????? ???? ????????? ????? ?????? ?? ??????? ???????? ??????? ?? ?????? ???? ?? ???? ??????? ?????? ??? ??? ??? ?? ??? ???? ??? ???? ?????? ????? ?????? ------------------------------------------------------------------------------------------------------- Dynamics GE202 homework # 1 Due in one week 2nd Sem. 1430/1431 Problem 1: An automobile is accelerating at 5 m/s2 on a straight road on a hill where the radius of curvature of the hill is 200 m. What is the magnitude of the total acceleration of the car when its speed is 30 m/s? (A) 5.00 m/s2 (B) 5.46 m/s2 (C) 6.04 m/s2 (D) 6.73 m/s2 Problem 2: The airplane is tracked by radar, which records r, θ , θ and θ at regular intervals. The readings at a certain instant are r =1000 m, θ= 38.4°, θ = 0.0367 rad/s, and θ = 0 If the airplane is in level flight at an elevation of h, calculate its speed and acceleration at this instant. Dynamics GE202 homework # 2 Due in one week 2nd Sem. 1430/1431 Problem 1: The velocity and acceleration of particle are known as m/s and m/s2 when =30o. At this instant Determine the values of, , , and for particle. Note that and . Find and for particle. Now consider particle, which moves along x direction with constant velocity of 20 m/s. Determine and at the shown instant. Problem 2: Airplane A is flying horizontally with constant speed of 55 m/s and is towing the glider B, If r=60m and θ is increasing at the constant rate of 5 degrees per second. Find the velocity v and