An astronaut of weight, 'mg' is moving upwards in a rocket with an acceleration, '4g'. His apparent weight inside that rocket will be:
Correct answer: D. 5 mg
- A. zero
- B. mg
- C. 3 mg
- D. 5 mg
Explanation
The correct option is: D) 5 mg The apparent weight of an object is the force exerted by a supporting surface (such as a floor or a scale) on the object. In this case, the astronaut is moving upwards in a rocket with an acceleration of '4g'. The apparent weight (W') can be calculated using the following formula: W'=m ( g+a )----------------------- where w' is the apparent weight so W'=m x (g+4g) w'=5mg So, the apparent weight is 5 times the weight of the astronaut. Therefore, the apparent weight of the astronaut inside the rocket is 5mg and the correct option is D) 5 mg .
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