A train starts from rest and accelerates uniformly until it has traveled 5.6 km and acquired a forward velocity of 42 m/s. The train then moves at a constant velocity of 42 m/s for 420 s. The train then slows down uniformly at until it is brought to a halt. The acceleration during the first 5.6 km of travel is closest to which of the following?

Question

A train starts from rest and accelerates uniformly until it has traveled  5.6 km and acquired a forward velocity of  42 m/s. The train then moves at a constant velocity of  42 m/s for  420 s. The train then slows down uniformly at  until it is brought to a halt. The acceleration during the first  5.6 km of travel is closest to which of the following?

Quizplus · Accepted Answer

The Answer of A train starts from rest and accelerates uniformly until it has traveled  5.6 km and acquired a forward velocity of  42 m/s. The train then moves at a constant velocity of  42 m/s for  420 s. The train then slows down uniformly at  until it is brought to a halt. The acceleration during the first  5.6 km of travel is closest to which of the following?

A Train Starts from Rest and Accelerates Uniformly Until It