Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 14)
14.
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
13 comments Page 1 of 2.

DK gamerz said:   4 years ago
Explanation please.

Rajeev said:   7 years ago
@Harendra.

Here, we can use a quadratic equation.

Ganesh said:   7 years ago
What is time of flight?

KEVINES said:   8 years ago
Here the angle of projection is also from horizontal.

Harendra said:   8 years ago
S= ut + 0.5 a (t)^2.
here S=0, since range is horizontal distance covered until the particle reached the its initial point.
overall angle of projection = (α-β).
accelaration (a) = g*cosβ , since inclination of the plane is present.
u = intial velocity in x direction = usin(α-β).

Substitute all the values in the equation. You will get the answer.
(4)

M Saikrishna said:   8 years ago
According to me, the answer is (2ucos(a))/(gcos(b)).

Kumara swamy said:   9 years ago
Rotate your coordinate axis by beta degrees and resolve your "g" component in your new axis.

Your displacement in y-axis will be given as.

y = usin (a-b) - 0.5cos (b) t^2.

After a time of flight T displacement along y-axis will be zero places y = 0 in the equation, you will get the answer.

Kiran P. said:   9 years ago
The total time taken by a projectile to reach the maximum height and to return back to ground is known as the time of flight.

Suresh s said:   9 years ago
@K.Kisku.

While throwing an object, the time taken by the object to reach rest or destination.

K.Kisku said:   10 years ago
What is time of flight define? Please.


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