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76 Views

a body is projected at t=0 witha velocity 10 at an angle 60 degrees with the horizontal. the radius of curvature with the trajectory at t=1 is R. neglecting the air resistance find R

ginnisachdeva02_9364270 Student Expert 17th May, 2020

Hey!


As we know,


Vx(velocity in x direction) =10cos60 =5m/s

Vy (velocity in y direction) =10cos30 =53m/s

Velocity after t=1 second

Vx=5m/s (velocity in x direction will remain same)

Vy=(5sqrt3−10) m/s =10−5sqrt3

An=(v^2)/R

Which means

R = (Vx^2+Vy^2) /An

Which means R is (25+100+75−100sqrt3) / 10Cosθ

tanθ=(10−5sqrt3) /5

tanθ=2−sqrt3

θ=15

37 Views

tangets are drawnfrom the point -2-1to the parabola =4x .the point at which the normal dat the ends of the chord of contact interest is

Gaurav Khandalkar 5th Sep, 2020
Hello aspirant
Have a note that these types of questions you can ask for your respective subject teacher they may help you in explaining you.Its too hard to explain on this portal.
Please understand the situation and rewrite the question related to career.
Hope it helps you.
43 Views

what is the procedure to apply for an engineering college?steps to take admission in a college.

Mayank Chowdhary 26th Jun, 2020

First of all you need to write an entrance examination like Jee mains, jee advance, cet, comedk, bits, etc. And also you need good percentage in your Pcm and also English subject in your boards as per the eligibility criteria of these exams. And then as per your merit score

54 Views

what is the admission schedule for year 2020-21 date wise for BBA course in National Rail Transport Institute Vadodara.Exam of class 12 th bd is rescheduled & will be conducted in July first week.Is class 12 bd appearing yr student is eligible to give entrance test for BBA Any changes due to COVID

Sk Student Expert 5th Jun, 2020

Dear Aspirant,

We hope you have already registered for the NRTI Online Examination and if you have not done so, it is still available till 13/06/2020. With the current Covid situation, you will be notified of the rescheduling but make sure you are registered first, as sometimes the websites are

302 Views

How much marks is needed in jee mains to write jee advanced?I only got 53 in jan jee mains

harsh Student Expert 17th May, 2020

Hello dear

If 53 is your percentile score and you do not belong to ST or pwd category than it is not possible for you to give jee advanced according to last year trend.

You need to qualify the jee mains with a good percentile and if you are from

51 Views

I dont speak clearly I can apply for AFMC college

rehan18alam Student Expert 17th May, 2020

Dear Aspirant,

As per the official information brochure of the AFMC, if the student have problem in the speech, he is not eligible for the AFMC.

According to the rule 3.(b) of the official infomation brochure:-

There should be no impediment of speech.

Hope this helps. Thank you.

1081 Views

which is better time or ims for cat coaching ?

Sunita Chetri 30th Mar, 2021

One of the best recommend  cat coaching centre in Assam is IMS Guwahati  where you will get the reliable study materials, mock tests and a team of mentors who are having experience of teaching 10,000- 15,000 students since ages. Most of the students are known to this centre because of

104 Views

I have voice problem I can apply for AFMC college

rehan18alam Student Expert 17th May, 2020

Dear Aspirant,

As per the official information brochure of the AFMC, if the student have problem in the speech, he is not eligible for the AFMC.

According to the rule 3.(b) of the official infomation brochure:-

There should be no impediment of speech.

Hope this helps. Thank you.

56 Views

i have fail in 2 sibjects in 12th science B group gseb 2020...Can i give retest in july2020?

iammohdshareef 17th May, 2020
Hello,
.
Yes, you can give improvements if the 12th results are out and the dates of improvement are released. You should apply for improvements from the institution, contact the Institution speak about improvement examinination. They will let you know when and how to apply.
162 Views

how many marks should I get in ts eamcet, to get admission in jntu Hyderabad or cbit colleges respectively in EEE or ECE, as SC candidate, home state quota and male

Sharon Rose Student Expert 26th Jun, 2020

Hello,

In 2019 the cut off was as follows for JNTU, Hyderabad for SC category

  • EEE: 11617
  • ECE: 8621

CBIT

  • ECE: 10741
  • EEE: 16778

Considering this you need to secure rank within 20,000. So to secure such rank you need to score 80-90 marks and you must have 550 or

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