a particle is moving in a cirular orbit with a constant tangentialacceleration ,after a certain time t has elapsed afterthe begining of mtion ,the angle between the total acceleration w and the irection along the adius R becomes equal to 45 ,what is the ngular acceleration of the particle


 

2 years ago

Share

Answers : (1)

                                        

Let the tangential acceleration be a and initial ang vel be wi. Now ang vel at time t(w) will vary as w=wi=at. At time t centripetal acceleration is =R(w*w). Tangential acceleration =a. tan inverse of a and R(w*w) should b1 implying that they are equal.


So on solving the equality you should probably get the correct answer

2 years ago

Post Your Answer

More Questions On Mechanics

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
A ball A’ of mass m falls to the surface of the earth from infinity.Another ball ‘B’ of mass 2m falls to the earth from the height equal to six times the radius of the earth then the ratio...
 
 
in first case, initial pe=0 and final pe is GmM/r..conserve energy here and get val of 1/2mv^2 in second case, initial pe is GmM/7r and final pe is GmM/r..again conserve energy to get val of...
 
raj 2 months ago
 
sorry, in second case take 2m everywhere in place of m
 
raj 2 months ago
a heavy uniform straight rod is suspended from apont by two strings of the same length as the rod attached to its ends.if one string is cut prove that the initial angular acceleration of the...
 
 
Dear student, Find out the tension in the string and draw the FBD of the rod and the string just after the string is cut. Find out the unbalanced forces and find the accelerations, Good luck...
  img
Shobhit Varshney 4 months ago
 
sir i tried to do it as mentioned by you before posting this question on this forum but still could not succeed by equation mg-t=ma and mgl/2=ml2/3alpha and a=l/2alpha with this t=mg/4 and...
 
arun gupta 4 months ago
can a body have a constant velocity but variable speed?
 
 
yes it can . because even if a body has uniform speed on a circular motion then too its velocity changes. thus it is not imprtant that change in speed is necessary for change in velocity ....
 
Saloni gordhan Rakholiya 5 months ago
 
NO NEVER
 
PRAJVAL98 6 months ago
Normal 0 false false false EN-US X-NONE X-NONE The work functions for metals A, B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einsteins equation, the metals which will emit...
 
 
So, only metals having work function less than 3eV can emit photoelectrons for the incident radiation of wavelength 4100 Å.
  img
Aditi Chauhan one year ago
 
(a) 100 g will become 25 g in two half lives so it is 3200 years.
  img
Aditi Chauhan one year ago
 
we know that E=hc/lambda now from given data 1eV=1-6*10^-19 J. now find E value(which will be 3eV) and those having (A,B,C) energy greater than E will show. Answer is (c) A and B only.
 
Madhukar Thalore one year ago
what is a black hole?
 
 
A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen...
  img
Aarti Gupta 9 months ago
 
Black holes are the cold remnants of former stars, so dense that no matter—not even light—is able to escape their powerful gravitational pull.
 
Indu 9 months ago
classification of transformers ?
 
 
Based on the design of transformers that is the manner in which the primary and secondary coils are provided around the laminated steel core. 1. Core-Type Transformer 2. Shell-Type...
  img
Vasantha Kumari 11 months ago
 
The Transformer is basically a very simple device. It mainly consists of a core, windings and insulations. The windings are wound over the laminated magnetic core. These windings are...
 
Indu 10 months ago
View all Questions »