Question
Question: A particle moves from one end of a strip to the other end in time t with uniform velocity. The parti...
A particle moves from one end of a strip to the other end in time t with uniform velocity. The particle then files off vertically making the strip move o n the smooth horizontal table. Further distance traveled by the strip in time T is equal to the length of the strip L. Then
A
T > t
B
T = t
C
T < t
D
Data is insufficient.
Answer
T > t
Explanation
Solution
The particle and the strips have to move in opposite direction. Their relative velocity is given by vr = L/t. The strip continues to move at its previous speed which is less than the relative velocity. It will now cover the same distance rather slowly.
∴ T > t