5. suppose a skydiver (mass = 75kg) is falling toward the earth. when the skydiver is 100m above the earth he is moving at 60m/s. at this point calculate the skydiver’s…….show your work and pe=mgh m= g= h=

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

Name two kinds of practical electric pumps.

Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.