Answer to Question #85034 in Mechanics | Relativity for madison lemere

Question

This problem is best done graphically. A ''toy train'' on its way to Darjeeling is speeding up slowly from v=0 to v=40.0 km/hr in 30.0 min and then slows down to a stop over the remaining 20.0 min. Plot v vs t for the train. Using your plot, calculate the distance traveled by the train in 50.0 min. Report the answer accurate to three significant figures.

-----km

B) What is the acceleration of the train in the first 30 min. Express your answer accurate to one significant figure

C.)What is the acceleration in the next 20 min. Express your answer accurate to one significant figure.

---- ×10−3 m/s2