Question

mass 40 kg climbs of flight of 30 steps in 20 minutes​

Answer 1

answer:

1. 4:3

2.1:1

Explanation:

1. work1/work2 =. Mg/Mg (displacement is same so work depends on force)

= 40*10/30*10 = 40/30 =4/3

2. power1/power 2= w1/t1. /w2/t2

=====. = 4/3 /4/3= 1:1