Speed and Velocity of a mosquito

  • Thread starter Thread starter temaire
  • Start date Start date
  • Tags Tags
    Speed Velocity
AI Thread Summary
To determine when a mosquito traveling at 2.4 km/h will hit a person moving toward it at 2.0 m/s from a distance of 35.0 m, the velocities must be converted to consistent units. The equation v = d/t is used to find the time until impact by considering the relative speed of both the mosquito and the person. The initial attempt to solve the problem involved rearranging the formula but was unsuccessful, prompting questions about unit consistency. Clarification was sought on whether the problem required calculating how far the person has moved when the mosquito reaches them. The discussion emphasizes the importance of proper unit conversion and vector addition in solving motion problems.
temaire
Messages
275
Reaction score
0

Homework Statement


A mosquito flies toward you with a velocity of 2.4 km/h [E]. If a distance of 35.0 m separates you and the mosquito, at what point will the mosquito hit your sunglasses if you are traveling toward the mosquito with a speed of 2.0 m/s and the mosquito is traveling in a straight path?


Homework Equations


v=d/t


The Attempt at a Solution


I rearranged the formula to solve for time first, by dividing the distance by the addition of the vectors, but it didn't work.
 
Physics news on Phys.org
That approach should work. Did you use proper units? (I assume they want to know how far you've moved when the mosquito hits you.)
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
View full post »

Similar threads

How Far Will You Travel Before Hitting the Mosquito?
Replies
2
Views
2K
Mosquito being charged by dinosaur
Replies
1
Views
2K
Decibels, Waves, Kinetic Energy and Mosquitos
Replies
2
Views
20K
What Are the Dynamics of a Bicycle Wheel with External Forces?
Replies
1
Views
3K
How Do You Calculate the Mass of a Blue Whale Using Momentum?
Replies
1
Views
3K
Two Equations for Average Velocity?
Replies
2
Views
2K
Momentum: instantaneous or average?
Replies
9
Views
1K
Calculating Velocity Vector of Object in 2D Space
Replies
10
Views
2K
What is the displacement and average velocity of a classic car in a road rally?
Replies
1
Views
2K
Projectile Motion velocity vector Problem
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top