04/08/2023 LECTURE 10 1

ENGINEERING MECHANICSME 201

INSTRUCTOR: SHEHARYAR MALIKBS AEROSPACE ENGINEERING

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APPLICATIONS

ENGINEERING MECHANICS

DYNAMICS

RELATIVE MOTION

CURVILINEAR MOTION

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ENGINEERING MECHANICS

CURVILINEAR MOTION

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ENGINEERING MECHANICS

CURVILINEAR MOTION

ACCELERATION

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ENGINEERING MECHANICS

CURVILINEAR MOTION

VELOCITY

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ENGINEERING MECHANICS

CURVILINEAR MOTION

04/08/2023 LECTURE 10 7

A race car C travels around the horizontal circular track that has a radius of 300 ft. If the car increases its speed at a constant rate of 7 ft/s2, starting from rest, determine the time needed for it to reach an acceleration of 8 ft/s2. What is its speed at this instant?

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

DYNAMICS

04/08/2023 LECTURE 10 9

The boxes in travel along the industrial conveyor. If a box starts from rest at A and increases its speed such that at = (0.2t) m/s2 where t is in seconds, determine the magnitude of its acceleration when it arrives at point B.

ENGINEERING MECHANICS

EXAMPLE PROBLEM

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ENGINEERING MECHANICS

DYNAMICS

04/08/2023 LECTURE 10 11

• When the skier reaches point A along the parabolic path he has a speed of 6 m/s which is increasing at 2 m/s2. Determine the direction of his velocity and the direction and magnitude of his acceleration at this instant. Neglect the size of the skier in the calculation.

ENGINEERING MECHANICS

DYNAMICS

04/08/2023 LECTURE 10 12

ENGINEERING MECHANICS

DYNAMICS