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A satellite in force free space sweeps stationary interplanetary dust at a rate dM/dt = αv where M is the mass and v is the velocity of the satellite and α is a constant. What is the deceleration of the satellite?
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- - αv2
- - αv2 / 2 M
- - αv2 / M
- - 2αv2 / M
Correct Option: C
| F = |  |  | v = αv2 | | ∵ | = αv | | ||
| dt | dt |
| ∴ Retardation = | = - | |||
| M | M |
