NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Mechanical Properties of Fluids
NEET · Physics · Mechanical Properties of Fluids
A spherical ball is dropped in a long column of a viscous liquid....
A spherical ball is dropped in a long column of a viscous liquid. The speed (v) of the ball as a function of time (t) may be best represented by
Options
- A
- B
- C
- D
Correct answer
B.
Step-by-step solution
When a spherical ball falls in a viscous liquid, viscous drag increases with speed.
Initially acceleration is high, but drag force gradually balances weight.
Hence, the ball approaches a constant terminal velocity asymptotically.
The v-𝑡 curve starts steeply, then flattens out toward a constant value.
Therefore, the correct representation is (2). ✅