You are late for PHYS 211 lab Choose the best estimate the a

You are late for PHYS 211 lab. Choose the best estimate the average power required for you to climb up two floors of Osmond Lab in 10 seconds. (Note: 1 kg = 2.2 lbs. Osmond floors are about 3 meters high.)

Solution

>> Total distance to climb, h = 2 floors of Osmond Lab = 2*3 = 6 m

and, time available, t = 10 sec

>> So, average Velocity required = h/t = 6/10 = 0.6 m/s

Now, Force is due to my weight, i.e. F = mg = 75*9.81 = 735.75 N { Taking my weight as 75 Kg }

>> As, Power, P = Force*Velocity

=> Average Power Required by me = 735.75*0.6 = 441.45 W ........ANSWER........