The tangential acceleration of an object A) represents the rate of change of the velocity vector's direction. B) represents the rate of change in the magnitude of the velocity. C) is a function of the radius of curvature. D) Both B and C.

8. An object is thrown from the ground and reach a maximum height of 30 m above the ground and a range of 150 m. Find the initial velocity v, of the object and its angle of projection 0 above the ground. A) v, = 43.22 m/s, 0= 35.43° B) v, = 40 m/s, 0= 45° C) v, = 45 m/s, 0= 45° D) v, = 38.82 m/s, 0= 38.66° %3D

Engineering Mechanicscheck image for problemPlease show solution

Write short notes on followings:i) Scope of Applied Mechanicsii) Polar Coordinate Systemiii) Moment of a Coupleiv) Energy and Momentum Method

Heat, q is a path function. a) True b) False

ft A passenger train leaves King Street Station in Seattle. Starting from rest, it accelerates at 3.25 until it 8² reaches it's top speed of 50 mph. It stays at this top speed for 15 minutes and then decelerates at 2.5 until it comes to a complete stop. ft 8² a) How long does it take to reach its top speed? b) How many miles did the train travel? miles seconds

The expected value of the voltage across a resistor is 10V. However,measurement yields a value of 8.0 V. Calculate: a)Absolute error b)%error c)% accuracy

In machine design we usually compare the equivalent stress of the component with the: a) Allowable stress b) Machine stress c) Force d) Moment e) Torque

Q1 // Choose the correct answer: 1- A fluid is one which can be defined as a substance a) Has some shear stress at all points. b) Can deform indefinitely under the action of the smallest shear force. c) Has the small shear stress in all directions 2- What is mean by an incompressible fluid? a) Density change with pressure. b) Density does not change with pressure. c) Neither a. or b. 3- A piemeter is used to measure positive gauge pressure of liquid and only limited to low pressure measurement a) b) c) True. False. Neither a or b. 4- The correct water pressure (ywater 9810 N/m') at a depth of 10 m in a tank is open to atmosphere is 98100 K pa gage 98100 pa gage 9.81 pa gage a) b) 5- Which is the expensive device for measuring flow/discharge rate Venturi meter a) b) c) Pitot tube Orifice meter

11. A particle moving along a straight line has its position s in meters at any time t in seconds given by s=t' + 4t. When will the velocity be numerically equal to its acceleration? A) t= 3.67 s B) t = 1.89 s C) t= 2.50 s D) t= 1.33 s