An inclined railway travels at a speed of 1.10 m/s while climbing at an angle of 35.0°. The railway delivers riders to the top of a mountain – a change in elevation of 125 m. (a) Determine the rate at which the train’s elevation increases. (b) Determine the time for it to reach the top.

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Why should seat belts not be mandatory quick plz

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.