A train travelling at is brought to rest by the brakes in

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

A train travelling at 54 km/h54\,\text{km/h} is brought to rest by the brakes in 150 m150\,\text{m}. Assuming uniform retardation, what is the magnitude of the retardation? (a) 1.50 m/s21.50\,\text{m/s}^{2} (b) 0.50 m/s20.50\,\text{m/s}^{2} (c) 0.75 m/s20.75\,\text{m/s}^{2} (d) 3.00 m/s23.00\,\text{m/s}^{2}

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