Question1
If a race car completes a mi oval track in s, what is its average speed? Did the car accelerate? I know what an average speed is, but I require to know if the car accelerated and another question which I don't get at all.
A body moving with uniform acceleration has a velocity of cm/s when its x coordinate is 3.66 cm. If its x coordinate s later is cm, what is x-component of its acceleration?
Question2
A baseball pitcher throws a fastball at a speed of 40 m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 2.9 m. compute the acceleration, assuming that it is constant and uniform.
Question3
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.62E+16 electrons from one plate to the other. How much work is completed in charging the capacitor?