Recent content by Eunes

Also, please help solve this problem: A car travels 15.6 km west at a speed of 40 km/h, then travels 11.4 km south at a speed of 50 km/h and finally travels 11.3 km east at a speed of 45 km/h. What is the average speed for the car over the entire trip? It's the same thing, EXCEPT it is asking...

Homework Statement A car travels 14.6 km west at a speed of 40 km/h, then travels 12.0 km south at a speed of 50 km/h and finally travels 19.0 km east at a speed of 45 km/h. What is the magnitude of the average velocity for the car over the entire trip? Homework Equations 3 kinematics...

Right, so m*g*sin(theta) is the parallel component. What would you plug in, and what did you get for the answer?

So what exactly is the formula to calculate it please?

Thank you for the rapid reply -- yes, I do know the trigonometric functions and I do know that acceleration is a vector, but how do I implement that knowledge into this problem? Alternatively, what are the first few steps/an equation that I can use to find this answer? Thanks again.

But I don't know the velocity -- I know the speed. I am pretty sure I have to find the acceleration as soon as it is let go, so we don't have to go too in depth. I'm sorry for my lack of knowledge, but what was KE/PE stand for?

Homework Statement 1st example: A 10 kg block is pushed up a ramp at a constant speed of 5.7 m/s. The ramp makes an angle of 30 degrees to the horizontal and the ramp is frictionless. The block is released and allowed to slide up the ramp until it stops. What is the magnitude of the...