0

Guest

Courses New

A bodt of mass m is launched up on a rough inclined plane making an angle 45 with horizontal . if the time of ascent is half of the time of desent ,the frictional coefficient between plane and body is

A bodt of mass m is launched up on   a rough inclined plane making an angle 45 with horizontal . if the time of ascent is half of the time of desent ,the frictional coefficient between plane and body is

Grade:9

1 Answers

Vikas TU
14149 Points
4 years ago
Hiii 
Time taken to cover upward = Tu
Time taken to cover downward = Td
Td = 2Tu
We know that 
S = VoTu - ½ aTu^2 (Upward Motion)
S= ½ a Td^2
solving this , you will get 
Upper acceleration = 4 * below acceleration
Using Newons second law of motion
mau = mgsinQ + mew*mgcosQ
mad = mgsinQ – mew*mgcosQ
putting the value and solving you will get 
mew = 3/5
 

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More