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On an object of mass 1kg moving along x-axis with constant speed 8m/s a constant force 2N is applied in positive y-direction.Find its speed after 4 seconds.?

Lakshmi Vinod , 7 Years ago
Grade 12th pass
anser 2 Answers
Debdeep

Last Activity: 7 Years ago

Velocity along x=8(constant) Acceleration along y=2m/s^2Velocity along y after 4 s=2*4=8m/sSpeed =8\/2m/s

Deligant

Last Activity: 5 Years ago

  1. Mass=1kg.     Velocity= 8i^.   Force=2j^.  F= ma  so.   2j^=1.v-u/t.  = v-8i^/4.  So 8j^+8i^=v. Since he is asking the magnitude.    ​root over 82+82=8root 2
 
 

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