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

Total Price: Rs.

There are no items in this cart.
Continue Shopping
Pratik Sharma Grade: 12

A bird flies for 4 sec with a velocity of |t-2| m/s in a straight line where
t=time in seconds .It covers a distance of

8 years ago

Answers : (4)

Badiuddin askIITians.ismu Expert
147 Points

Dear Pratik


V= |t-2| 

dx/dt = |t-2|

dx = |t-2|dt

oxdx  = o4|t-2|dt

 x  = o2(2-t)dt  + 24(t-2)dt


Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you
the answer and detailed  solution very  quickly.

 We are all IITians and here to help you in your IIT JEE preparation.

All the best.
Askiitians Experts

8 years ago
Pratik Sharma
18 Points

how the step 5 come ?

8 years ago
26 Points
										givenV= |t-2| dx/dt = |t-2|dx = |t-2|dto∫xdx  = o∫4|t-2|dt x  = o∫2(2-t)dt  + 2∫4(t-2)dt      =4givenV= |t-2| dx/dt = |t-2|dx = |t-2|dto∫xdx  = o∫4|t-2|dt x  = o∫2(2-t)dt  + 2∫4(t-2)dt      =4givenV= |t-2| dx/dt = |t-2|dx = |t-2|dto∫xdx  = o∫4|t-2|dt x  = o∫2(2-t)dt  + 2∫4(t-2)dt      =4
8 months ago
Mohit poonia
15 Points
As we know that 
At t=0  u=2 m/s     and at t=2  v=0 m/s
Therefore by v=u+at   we get,
0=2+a2   =)     a=-1m/s2
And by s=vt-1/2at2  we get 
S= 0×2-1/2×-1×2×2     =)     s=2m ---------------1
So the first part is complete and now the second part starts
We know that at  t=2seconds   u=0m/s     and at     t=4sec   v=2m/s so total time =2sec
So by v=u+at
2=0+a×2       =)         a=1m/s2  
Now by  s=ut+1/2at2      
s= 0×2+1/2×1×2×2      =)         s=2m      -------------2
So by adding 1 and 2
We get distance travelled by bird =2+2=4 meters
And thats the answer for those who find the calculus in this question difficult.  And also feel free to ask any doubts involved in this solution.
8 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete Physics Course - Class 12
  • OFFERED PRICE: Rs. 2,756
  • View Details
  • Complete Physics Course - Class 11
  • OFFERED PRICE: Rs. 2,968
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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