Please wait...
Contact Us
Contact
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry

OR

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

93219 24448 / 99871 78554

Mon to Sat - 10 AM to 7 PM

If a car at rest accelerates uniformly to a speed of 144 km/h in 20 sec, it covers a distance of:

Asked by Abhishek123pop 15th September 2019, 10:47 PM
Answered by Expert
Answer:
Let us convert the speed in its SI unit. 
144 km/h = 144 × (5/18) = 40 m/s 
 
u = 0, v = 40 m/s, t = 20 s 
v = u +at 
40 = 0 + a (20)
40 =20 a 
a = 2 m/s2 
 
Thus, the total distance covered is, 
s = ut +1/2 at2 
s = 0 + 1/2 (2) (20)2 = 400 m 
 
Thus, s= 400 m 
Answered by Expert 16th September 2019, 12:07 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp