What are some examples of falling objects for which it would be unreasonable to neglect air resistance?
What are some examples of falling objects for which it would be unreasonable to neglect air resistance?
Radhika Batra , 11 Years ago
Grade 11
Mechanics> What are some examples of falling objects...
2 AnswersKevin Nash
Consider the fall of feather and a massive object from the tall building. It is obvious that the object would reach the ground earlier as compared to the feather. This is because the effect of air resistance on the feather is large relative to that on object. Therefore one cannot neglect the effect of air resistance in such situations.
The effect of air resistance is significant for the person falling with a parachute. It is due to the upward force from the air that the parachute can fly in the air and avoid the deadly landing of the person. When the force resulting from the air balances the weight of the person, the person falls with a constant velocity, hence no acceleration.
The effect of air resistance is significant for the person falling with a parachute. It is due to the upward force from the air that the parachute can fly in the air and avoid the deadly landing of the person. When the force resulting from the air balances the weight of the person, the person falls with a constant velocity, hence no acceleration.
Brighton Kilawe
A piece of paper when falling from upward toward the earth surface can take long time to reach on the ground , therefore this is due to an effect of air resistance compared to magnitude of a paper also a piece of will have non-direction it will be like zig zag.
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on mechanics
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
mechanics
1 Answer Available
Last Activity: 7 Months ago
A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
11
21
31
41
A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
11
21
31
41
mechanics
1 Answer Available
Last Activity: 8 Months ago
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mmat the free end, where a small mass of 2 g is positioned. determine(i) The velocity of the end when passing through the zero position(ii) The acceleration at maximum displacement(iii) The maximum kinetic energy of the mass
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mm
at the free end, where a small mass of 2 g is positioned. determine
(i) The velocity of the end when passing through the zero position
(ii) The acceleration at maximum displacement
(iii) The maximum kinetic energy of the mass
mechanics
2 Answers Available
Last Activity: 3 Years ago
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of springconstant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by thedamping constant b = 0.07kg/s.(i) Find the period of the damped oscillation.(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of spring
constant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by the
damping constant b = 0.07kg/s.
(i) Find the period of the damped oscillation.
(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
mechanics
1 Answer Available
Last Activity: 3 Years ago
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
mechanics
1 Answer Available
Last Activity: 3 Years ago