Q.1 An object moves along the x-axis according to the equation x (1) =- 31 +121- 6, where tis in seconds. For the time interval t= 0 to t-3 s, (1) find the acceleration; (2) calculate the distance traveled; and (3) determine the displacement of the particle.

Mechanical engineering 　５

2. The triple scalar product u. (rx F) results in a. A scalar quantity (+ or -) b. A vector quantity c. Zero d. A unit vector e. An imaginary number

Consider the robotic arm shown below, made up of individual arms AB and BC. The weight of the arms AB and BC are each 160 N, and the resultant weight force is shown to act through each arm's center of gravity as shown. You may assume that the center of gravity is occurring along the midpoint of each arm's length. The robotic arm is picking up a package that weighs 40 N, and the 40 N weight force acts through the package's center of gravity at the location shown. ०८ b) 600 mm 160 N Bo 40° -600 mm 160 N 150 mm 20⁰ 40 N solve the following engineering physics problems with detailed explanations of every step. a) Consider the robotic arm AB. Calculate the moment arm of the individual arm's weight force with respect to the robotic arm's shoulder at point A. Report your answer in mm. Consider the robotic arm BC. Calculate the moment arm of the individual arm's weight force with respect to the robotic arm's shoulder at point A. Report your answer in mm. c) Consider the 40 N package. Calculate…

2. A force of magnitude F, directed along a unit vector u, is given by F = a. F (u) b. u/F c. F/u d. F + u e. F-u

Tractor Tire Additional torque is required to accelerate the water filled tractor tires to 25 MPH. The tires are 6 feet in diameter and the center rim is 2 feet in diameter. The moment of inertia for the rubber tire is 15 lbs.ft.Sec². Water weighs 62.4 lbs/ft³. The rim weighs 120 lbs. A. Find Masses B. Find Omega C. Find Alpha D. Find Jm E. Find the torque to accelerate in 6 seconds

The two blocks A and B have a mass of 5.4 kg and 13 kg , respectively- (Figure 1) Figure 1'of 1