CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

A body moves in a circle of radius 1 m. Its speed is given by v=2t2. FInd the net acceleration at t=2 seconds.
  1. 1616 m/s2
  2. 3240 m/s2
  3. 3814 m/s2
  4. 4160 m/s2


Solution

The correct option is D 4160 m/s2
Let the tangential acceleration be at
and centripetal acceleration be ac
at=dvdt=4t
at|t=2 sec=4(2)=8 m/s2
ac=v2R
ac|t=2sec=[2(2)2]21=82 m/s2
=64 m/s2
anet=a2c+a2t=642+82
=4160 m/s2

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image