Drop five different balls from a height of 2 m on two different surfaces, and carefully

observe and record the bounce heights. Calculate the coefficient of restitution for

each ball on each surface, and explain your results.

Baseball: Drop___ Height____Bounce____Height____e________

Soccer ball: Drop___ Height____Bounce____Height____e________

Tennis Ball: Drop___ Height____Bounce____Height____e________

Golf Ball: Drop___ Height____Bounce____Height____e________

Basketball: Drop___ Height____Bounce____Height____e________

and I need someone to double check my answers on this one please

Using a stopwatch, run up a flight of stairs (Note: safety). Complete the portion of

the chart below. Use a ruler to measure the height of one stair, then multiply by the

number of stairs to calculate the total change in height. Calculate work, power, and

change in potential energy.

Wt (N) 578.27

Mass (kg) 59

Time (s) 60

Av. Vel. (m/s) 3540 N

Ht (m) 1.18

Work (J) 4177.2

Power (W) 69.62

PE (J) 125316

Thank you for your help!