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Time Interval s Speed in m/s 1 1.8 7 8.2 12 1.4 17 13 32 17.2 The above table lists the speeds a vehicle has been maintaining in specific time intervals. From the table above, assuming the vehicle has a gross weight of 1400kg and a rolling radius of 0.280m, answer the following questions (a) What is the maximum torque the vehicle has to exert at the wheels in order to maintain this speed? (b) What is the maximum braking torque the vehicle has to exert in this driving condition? What could be the maximum speed reached by the vehicle in this scenario? (d) What is the average speed achieved by the vehicle in this time frame? (e)If the vehicle was loaded with an extra weight of 1350kgs, how will the torque and braking force change?

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