Henry can lift a 200 N load 20 m up a ladder in 40 s. Ricardo can lift twice the load up one-half the distance in the same amount of time. Which comparison between Ricardo and Henry is correct?
Physics · High School · Tue Nov 03 2020
Answered on
Given
Henry can lift a 200 N load 20 m up a ladder in 40 s. Ricardo can lift twice the load up one-half the distance in the same amount of time.
Determine the comparison between Ricardo and Henry.
Formula for Work:
W = fd
W = work
f = force
d = distance
Solution:
Solve first for the work done by Henry.
W = (200N)(20m)
W = 4000 J
Solve the work of Ricardo. Twice the load, means he'll exert the force of 400N, and half the distance means he travels only 10m.
W = (400)(10)
W = 4000 J
The amount of work done by the two person is the same.
Final answer:
The amount of work done by the two person is the same which is 4000 J.