1The velocity vector makes an angle 90° with the x direction
So, velocity after time 2 sec=√(10*0)+(10*1-10*2)2 =10m/s
Akash Anand Answer is correct but approach is wrong, try to understand the situation first.
2 Answers
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we can see that the angle the vector makes from the vertican from it's point of origin is 45 degrees.
So, the magnitude of it's velocity after 2 seconds=
√(10*1/√2)2 + (10.1/√2 - 10*2)2
= 14.736m/s
at an angle taninverse(1-2√2)°
- Akash Anand Try again ..the correct answer is 10 m/sUpvote·0· Reply ·2013-05-30 23:21:17
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