5. What is the mass and weight of the bicyclist in the picture below? (Hint: W = mg)
6. If the cyclist has 2000 J of potential
energy at point C, how high is the hill?
7. All of the cyclist's kinetic energy at
point A was converted to potential
energy at point C. What is his kinetic
energy at point B, if point B is 5 meters
above the ground?
200 N

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.