Work Energy And Power Question 218
Question: A block of mass m is suspended by a light thread from a lift. The lift is moving upward with uniform velocity v. From the frame of lift, the work done by tension on the block in t seconds will be
Options:
A) $ -mgvt $
B) $ 0 $
C) $ \frac{mgvt}{2} $
D) $ mgvt $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] In the frame of lift displacement is zero, So $ W=F.S=T.S=0. $
BETA
