57 384
Assignments Done
99%
Successfully Done
In February 2018
Your physics homework can be a real challenge, and the due date can be really close — feel free to use our assistance and get the desired result.
Be sure that math assignments completed by our experts will be error-free and done according to your instructions specified in the submitted order form.
Our experts will gladly share their knowledge and help you with programming homework. Keep up with the world’s newest programming trends.

Answer on Mechanics | Relativity Question for akshaygopal

Question #4144
A body is dropped from a point 4.9m above a window 1.5m high. Find the time taken by the body to pass against the window.
Expert's answer
The falling time before passing the window is
t = √ 2h1/g = √2*4.9/9.8 = √1 =1 s.
The velocity after 1 second falling is
v = gt = 9.8 *1 = 9.8 m/s.


The equation of the motion while passing the window is the following:
hw = vt + gt2/2
1.5 = 9.8t + 9.8t2/2
4.9t2 + 9.8t - 1.5 = 0
t = (-9.8+ 11.2)/9.8 = 0.143

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question