Hi, I need all the help. These two examples do not work for me. It's not a task or anything to test, it's not in a hurry, but I'd like to see how to handle it. I apologize for the typos, I use the translator. A car weighing 1,400 kg is moving around
horizontal road from rest with acceleration
1.6 m · s −2. What is the traction of the car engine,
is the coefficient of shear friction 0.05? How much work does the engine do in 6 seconds of movement?

A locomotive weighing 12 tons moves on a horizontal track at a constant speed

34 km · h
−1. Determine the power of its engine,

if the coefficient of shear friction is between

wheels and rails 0.1.

thank u all!​