The force on the roof of the car is equal to the change in momentum of the rain.
F=m(Vf-V0)
=m(0+15)
=15m N
Here,m is mass of the rain drops per second.
During a storm, the rain falls directly with a speed V0 = -15m / s hits...
During a rain storm, rain comes straight down with a velocity Vi = -15 m/s and hits the roof of a car perpendicularly. The mass of the rain per second that strikes the roof is 0.060 kg every second. Assuming that the rain comes to rest upon striking the car (Vf = 0 m/s), find the average force exerted by the rain on the roof during a 3 second time interval.
During a rain storm, rain comes vertically down with a aped of -30.0 m/s and hits the roof of a Ford Fusion perpendicularly. The mass of raindrops per second which strikes the car roof is 0.0758 kg/s. Assuming that the raindrops come to a complete stop upon hitting the car, what is the average force exerted on the roof of the car by the rain?
drops of rai fall perpendicular to te roof of a parked car during rainstorm. The drops strike the rook with a speed of 15 m/s and the mass of rain per second striking the roof is 0.071 kg/s a. Assuming the drops come to rest after striking the roof, find the average force exerted by the rain on the roof. b. If hailstones having the same ass as the rian drops fall on the roof at the same rate with...
please show work for 4 and 6 andone is a 88-kg man.The woman movés away wih spel0l D) 4.07 m/s C) 0.75 m/s A) -15 m/s B) 5.0 m/s 4Rain comes down with a velocity of -15 m/s and hits the roof of a car. The mass of rain per second that strikesthe roof of the car is 0.060 kg/s. Assuming that rain comes to rest upon striking the car, find the average force exerted by the rain on the...
A motorcycle of mass m speeds up from speed v0 to speed vf in a time t. a) Derive an equation for the average force F on the motorcycle. (You'll want to first come up with an equation for the acceleration of the motorcycle in terms of v0, vf, and t.). b) Calculate the force that will accelerate a 210-kg motorcycle from 12.5 m/s to 20.8 m/s in 6.9 seconds. c) how does this force compare with the weight of...
Suppose a car is driving down the road at a speed of 15m/s^2. The car hits the brakes, inducing an acceleration of -2.5m/s^2. How long would it take, in seconds for the car go fully stop.
During a thunderstorm, winds with a speed of 45.7 m/s blow across a flat roof with an area of 618 m2 . Find the magnitude of the force exerted on the roof as a result of this wind. (Express answer in kN).
J, A falling 0.1 kg ball has a speed of 7.0 m/s just before it hits the floor and an upward speed of 5 0 ms immediately after it rebounds. The ball is in contact with the floor for 0.01 s. What is the magnitude (in N) of the average force exerted by the floor on the ball?
The hail comes straight down at a mass rate of m/Δt=0.0690 kg/s and an initial velocity of v0= -15.0 m/s. Suppose that the hail described there bounces off the roof of the car with a velocity of +12.6 m/s. Ignoring the weight of the hailstones, calculate the magnitude of the force exerted by the hail on the roof.
During a ballistic test a 0.15 kg bullet moving with 60 m/s hits a sandbag and exits from the other side with a velocity of 12 m/s. Sandbag has a thickness of 1.44 m and it applies constant force. a) Using kinematics equations, find the average velocity and the time for the bullet to pass through the sandbag. b) What is the average force exerted by the sandbag?