Engineering Mechanics Exam Prep
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Engineering Mechanics Exam Prep
Sample questions with model answers
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A miscreant snatches a purse from a lady and runs away on a motor cycle at an acceleration of 1.5 m/s². A police party standing nearby starts the chase 15 seconds later in the police van driven at 60 m/s. What time would be taken by the police party to catch up the miscreant?
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Calculate the time using kinematic equations for both the miscreant and police party.
The full exam-length answer is in the app.
A stone takes 6 seconds to reach the ground after it is dropped from the tower. If the stone is stopped after 2 seconds of its fall and then released again, how much more time will it take to reach the ground? Take g = 10 m/s².
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Calculate the time using free fall equations and total time of fall.
The full exam-length answer is in the app.
The motion of a particle is defined by the relations: x = t² + 3t and y = t³ - 8t² + 3 where x and y are in meters and t is in seconds. (a) Write the equations defining the motion of the particle in vectorial form (b) calculate the velocity and acceleration of the particle at time t = 2 seconds.
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Use vector notation for position and differentiate for velocity and acceleration.
The full exam-length answer is in the app.
Two cars A and B move at 54 km/hr in the same direction and car B is 300 m ahead of car A. If car A is accelerated at 6 m/s² while car B continues to move with the same velocity, calculate the time taken by car A to overtake car B.
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Set equations for both cars and solve for the time when distances are equal.
The full exam-length answer is in the app.
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