A horizontal water jet with a velocity of 10 m/s and cross

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A horizontal water jet with a velocity of 10 m/s and cross sectional area of 10 mm² strikes a flat plate held normal to the flow direction. The density of water is 1000 kg/m³. The total force on the plate due to the jet is

1. 100 N
2. 10 N
3. 1 N
4. 0.1 N

Correct Option: C

F = ρaV. (V – O) = ρaV²
= 1000 × 10 × (10^–3)² × 10² = 1N.