a.) Find the average force exerted by the rain on the roof of the car. b.) What
ID: 1973616 • Letter: A
Question
a.) Find the average force exerted by the rain on the roof of the car.
b.) What is the magnitude and direction of the impulse applied to the car roof by the rain?
During a rainstorm, rain comes straight down with a velocity of v0 = -15.0 m/s and hits the roof of a car perpendicularly. The rain bounces off the roof of the car with a velocity of 10.0 m/s. The mass of rain per second that strikes the roof of the car is 0.060 kg/s. a.) Find the average force exerted by the rain on the roof of the car. b.) What is the magnitude and direction of the impulse applied to the car roof by the rain?Explanation / Answer
a) average force = change of momentum/time =.6*(10+15) = 15N
b) impulse = 15*1 = 15 kg.m/s direction ---->upwards
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