A car wash nozzle directs a steady stream of water at 1.5 kg/s,with a speed of 20 m/s,against a car window.What force does the water exert on the glass? Assume the water does not splash back.
A) 30 N
B) 45 N
C) 300 N
D) 440 N

Question

Quizplus · Accepted Answer

The force exerted by the water on the glass can be calculated using the formula: Force = mass flow rate × velocity. Here, the mass flow rate is 1.5 kg/s and the velocity is 20 m/s. Therefore, the force is 1.5 kg/s × 20 m/s = 30 N.

A Car Wash Nozzle Directs a Steady Stream of Water