Discussion
On a stationary sail boat, air is blown from a fan attached to the boat. The boat
Answer: B
The boat does not move.
The fan pushes air backwards and the air pushes the fan - and hence the boat - forwards; but the moving air then strikes the sail and pushes it backwards with an equal force. The two internal forces cancel, and with no external force the boat stays put. Removing the sail would let it move.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development