Question

9. A porter with a suitcase on his head is climbing up a flight of stairs with a
uniform speed, the work done by the 'weight of the suitcase' on the suitcase is
A) Positive
B) Negative
O C) Zero
D) Undefined​

Answer 1

Answer:

positive pls mark me as the brainliest

Answer 2

Answer:

Question:

9. A porter with a suitcase on his head is climbing up a flight of stairs with a

uniform speed, the work done by the 'weight of the suitcase' on the suitcase is

A) Positive✔

B) Negative❌

O C) Zero❌

D) Undefined❌

Answer:

Option A postive ✔