C. making fun of a peer because she is Asian
hope this helps
Smooth, rough
Less, more
Fast, slow
Because there’s like no metal stuff idk
Answer:
The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency.
As per FBD while its accelerating upwards
we can say that

here normal force is given as


now mass is given as


now we will have


Now while accelerating downwards we can say by FBD

again plug in all values

