3. a) The velocity of a platform in an amusement park which moves along the s-axisis given by v = 2– 4t + 5t²ª , where t is in seconds and v is in m/s. The platformis at the positionS, = 3'm when =0Determine:(i)The position S, velocity v, and acceleration a when != 3s.(ii)The time at which the velocity of the platform is maximum.b) The race car A in Figure Q3 follows path a-a while race car B follows path b-bon the unbanked track. If each car has a constant speed limited to thatcorresponding to a lateral (normal) acceleration of 0.8g, determine the timesa and 's for both cars to negotiate the turn as delimited by the line C-C.Cab88 m72 mbBaA

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3. a) The velocity of a platform in an amusement park which moves along the s-axis is given by V= 2- 4t + 5t* , where t is in seconds and v is in m/s. The platform is at the position S, = 3 'm when = 0 Determine: (i) The position S, velocity V, and acceleration a when = 3s. (ii) The time at which the velocity of the platform is maximum.

3. a) The velocity of a platform in an amusement park which moves along the s-axis is given by V= 2- 4t + 5t* , where t is in seconds and v is in m/s. The platform is at the position S, = 3 'm when = 0 Determine: (i) The position S, velocity V, and acceleration a when = 3s. (ii) The time at which the velocity of the platform is maximum.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...

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