A train is accelerating at a rate of 4.0 km/hr/s. If it’s initial velocity is 40km/hr, what is its velocity after 30 seconds

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# A train is accelerating at a rate of 4.0 km/hr/s. If it’s initial velocity is 40km/hr, what is its velocity

A train is accelerating at a rate of 4.0 km/hr/s. If it’s initial velocity is 40km/hr, what is its velocity after 30 seconds