MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Menu
SHASHWAT AGARWAL Grade: 12
        

A CAR STARTS RECTILINEARLY , FIRST WITH ACC. 'W' = 5 M/S2 (THE INTIAL VELOCITY  IS 0), THEN UNIFORMLY,ND DEN DECELARATING AT D SAME RATE COMES TO A STOP. THE TOTAL TIME MOTION EQUALS T = 25S. THE AV. VELOCITY IS 72 KM/H. HOW LONG DOES D CAR MOVE UNFORMLY??


 


THE PROBLEM IS WHETHER THE ACCELERATION IS UNIFORM OR THE VELOCITY DAT IS WAT IM NOT ABLE TO UNDERSTAND??

6 years ago

Answers : (1)

Prudhvi teja
83 Points
										

Dear shashwat


He means you need to find out till what time it went through constant speed.


Take time with constant velocity is t


and with acceleration is t1


so 2t1+t= 25


avg velocity = ((at1)t1+(at1)t)/(2t1+t) = 20m/s


t1(t1+t) = 100


t1(25-t1) = 100


t1=5


t= 15s



Please feel free to post as many doubts on our discussion forum as you can.we will get you the answer and detailed  solution very  quickly.

All the best.


Regards,
Askiitians Experts
Prudhvi Teja


 


 



Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian












6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete AIPMT/AIIMS Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 4,500 off
USE CODE: SSP3
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 4,500 off
USE CODE: SSP3

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details