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Why we don't get hurt by raindrops even they fall with great velocity?
Wiki User
∙ 12y ago
Due to the equation F=ma were F is the force, m is the mass, a is the acceleration. Since the raindrop has such little mass (about 4mg. That's about 0.000004kg) and has the same acceleration all the time (9.8ms^-1). When these 2 are times together it give the force. So when a average raindrop falls on your head the amount of force it will apply to your head is 0.0000392N. Not a lot!
Due to the equation F=ma were F is the force, m is the mass, a is the acceleration. Since the raindrop has such little mass (about 4mg. That's about 0.000004kg) and has the same acceleration all the time (9.8ms^-1). When these 2 are times together it give the force. So when a average raindrop falls on your head the amount of force it will apply to your head is 0.0000392N. Not a lot!
Wiki User
∙ 12y ago
Wiki User
∙ 10y agoTerminal velocity depends on mass and surface area
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Why don't raindrops kill you when they fall from such high altitudes?
Raindrops don't generally hurt us having fallen all that way because they don't gain enough kinetic energy to do so. They do reach terminal velocity, and can even be pushed by downdrafts, but there's something else going on. A raindrop falling in air experiences deformation as it falls, and this changes its aerodynamics to prevent it from falling faster. The drop actually "flattens" somewhat as it falls toward a target below. Air resistance has "saved" us by deforming the droplet and limiting the amount of energy it can gain through its freefall.
The velocity of an object can what if the speed of an object remains constant?
The velocity can still change, even if the speed doesn't. This is because velocity is a vector - not only the magnitude is important, but also the direction.
Explain why velocity changes while driving around a circular track even if the speed is constant?
Velocity consists of a speed and a direction. If any of the two changes, the velocity changes.
How do you find velocity with no acceleration or time?
Velocity can only be identified by acceleration or time, even though we can also find it using force
When the direction of an object changes what happens to it's velocity?
A change in the direction of motion IS a change of velocity,even if the speed doesn't change.
What happens to the velocity of an object even if the speed of an object remains constant?
Velocity can change even if speed is constant.
Can you use irrational in a sentence?
His fear of rain was irrational. Even though it was an irrational fear, he couldn't stand raindrops.
What is an example of constant speed with changing velocity?
Velocity is a vector, thus it has a direction. Therefore, you can change the velocity by changing direction. A great example of this is a ball on a string spinning at a constant speed, but it is continually changing direction, therefore, even though the speed is constant the velocity changes at every instant.
What does raindrops become when they fall through air at freezing temperatures?
depends on how cold anything from snow to sleet or even hail.
Can you have acrylic nails if dont even have much nails?
yeh ive had them done before and they looked great..
Write an application to your class teacher for three days leave?
ur a great fool who dont even how to write a letter
Why don't raindrops kill you when they fall from such high altitudes?
Raindrops don't generally hurt us having fallen all that way because they don't gain enough kinetic energy to do so. They do reach terminal velocity, and can even be pushed by downdrafts, but there's something else going on. A raindrop falling in air experiences deformation as it falls, and this changes its aerodynamics to prevent it from falling faster. The drop actually "flattens" somewhat as it falls toward a target below. Air resistance has "saved" us by deforming the droplet and limiting the amount of energy it can gain through its freefall.
The velocity of an object can what if the speed of an object remains constant?
The velocity can still change, even if the speed doesn't. This is because velocity is a vector - not only the magnitude is important, but also the direction.
Explain why velocity changes while driving around a circular track even if the speed is constant?
Velocity consists of a speed and a direction. If any of the two changes, the velocity changes.
Do great whit sharks swim in groups?
No. they dont these creatures are independent they dont need nobodys help so they dont even if they did they would only catch 2 or 3 people a day and they would die of starvation so your answer is no
How do you find velocity with no acceleration or time?
Velocity can only be identified by acceleration or time, even though we can also find it using force
When the direction of an object changes what happens to it's velocity?
A change in the direction of motion IS a change of velocity,even if the speed doesn't change.
