Force provided by breaking system of train if it is decelerating at rate of -3 m s ^-2 and having mass 10,000 kg is {{}} A)-30,000 N B)-40,000 N C)-50,000 N D)30,000 N

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Quizplus · Accepted Answer

The force can be calculated using Newton's second law, F = ma, where m is the mass (10,000 kg) and a is the acceleration (-3 m/s^2). Thus, F = 10,000 kg * (-3 m/s^2) = -30,000 N. The negative sign indicates the force is in the opposite direction of motion, which is characteristic of a braking force.

Force Provided by Breaking System of Train If It Is