Ask questions and get helpful answers.
Ask a New Question
  1. Questions
  2. physics

A man running horizontal road with velocity 8 km/hr. Find the rain falling vertically downward direction. When he increases speed to 12 km/hr he find rain drops are falling at an angle 30' with downward vertically. What will be the velocity of rain?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Sonu
8 answers

  1. I am interpreting your first two sentences as meaning:
    "A man running horizontally along a road, with velocity 8 km/hr, finds the rain falling in a vertically downward direction."

    That statement implies that the rain has a horizontal component of 8 km/hr in the same direction the runner is running. When he runs at the same speed, the rain apears to come straight down.

    If he increases his speed to 12 km/hr, there is a 4 km/hr relative velocity of wind into his face. The vertical component of the wind velcity, Vy, must such that 4/Vy = tan 30
    Vy = 6.93 km/hr
    Vx = 8.00 km/hr
    Wind speed (magnitude) = 10.58 km/hr

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    drwls

  2. could we keep the answer as 4root7?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    leesa

  3. yes

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Anonymous

  5. How

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    how did 10.58 came

  6. 4.1.732

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    kumari

  7. India national cricket team cricbuzz live live

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Anonymous

  8. why u used vx =8 and why you don't use vx=12

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    chiranjeeb sarma

  9. loose

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    Anonymous

Answer this Question

Related Questions

  1. Pre-Calculus

    74. Road Grade When driving down a mountain road, you notice warning signs indicating that it is a "12% grade." This means that the slope of the road is -12/100. Approximate the amount of horizontal change in your position if you note from elevation

  2. English

    I read the zen parable "Muddy Road" but I don't understand what the moral is. Can anyone explain it to me? Here is the parable: Tanzan and Ekido were once traveling together down a muddy road. A heavy rain was still falling. Coming around a bend, they met

  3. physics

    A bullet is fired in a horizontal direction with a muzzle velocity of 300m/s.in the absence of air resistance,how far will it have droppped in travelling a horizontal distance of 20m.

  4. physics

    A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain

  5. physics

    A toy plane p starts flying from point A along a straight horizontal line 20 m above ground level starting with zero initial velocity and acceleration 2 m /s² as shown. At the same instant, a man P throws a ball vertically upwards with initial velocitu

  6. Physics

    During takeoff, an airplane climbs with a speed of 180m/s at an angle of 42 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining overhead. How fast is the shadow of the

  7. Physics

    he drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 185 m/s, and each tank is at the same height of 3.62 km above the ground. Although the speeds are the same, the velocities are different

  8. Physics

    The drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 173 m/s, and each tank is at the same height of 2.75 km above the ground. Although the speeds are the same, the velocities are

  9. Mathematics

    A garrison of 1200 men has sufficient ratios for 25 days at the rate of 2400g per man per day. If 300 man join them and the ratios are reduced to 2000g per man per day,how long will the road last all of them? Thank you :)

  10. physics

    a man having a mass of 60 kg exerts a horizontal force of 200 newton in pushing a 90 kg object a distance of 60 meters along horizontal floor. he does this at constant velocity in 3 seconds.the weight of this man is[in newton,taking g =10m/s square]

Still need help?

You can ask a new question or browse existing questions.