×

# POWER

Can Power ( in mechancs ) be negative?

Note by Amlan Mishra
3 years, 8 months ago

Sort by:

@anirban ghosh P=F.v is not accurate formula if u don't consider a time dependent force although ur hypothesis isn't wrong

- 3 years, 7 months ago

What do u actually mean by "a time dependent force"???

- 3 years, 7 months ago

same thing as I was saying you. As power can be given by formula P=F.V I.E. SCALAR PRODUCT, angle between force and velocity can be 180, so power can be negative.

- 3 years, 7 months ago

yes,consider friction it reduces work doing tendency of a person and you can verify it mathematically

- 3 years, 8 months ago