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प्रश्न
While practising for the snake boat race (Vallum kalli in Kerala), 100 oarsmen are rowing a boat together. Out of these, 95 row backwards to propel the boat forward. But by mistake, 5 oarsmen row in the opposite direction. If each oarsman applies a horizontal force of 200 N, what is the net force on the snake boat? (Ignore drag forces, air friction, etc.)
संख्यात्मक
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उत्तर
Given:
The force applied by each oarsman is 200 N.
Number of oarsmen rowing the boat forward = 95
Number of oarsmen rowing in the opposite direction = 5
Total forward force = 95 × 200 = 19000 N
Total backward force = 5 × 200 = 1000 N
Net force = Forward force − Backward force = 19000 − 1000 = 18000 N
Therefore, the net force acting on the snake boat is 18000 N in the forward direction.
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