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A body has an initial velocity of 3m/s and has an acceleration of 1m/sec2 normal to the direction of the initial velocity. Then its velocity 4 seconds after the start is

Asked by imtiyazmulla68 4th May 2018, 7:49 PM
Answered by Expert
Answer:
Initial velocity 3 m/s. This velocity component will not be altered by normal acceleration. hence this component velocity after 4 s is 3 m/s.
This object has normal acceleration 1 m/s2. Initial normal velocity is zero. hence the normal velocity after 4 s is given by
 
v = 1×4 = 4 m/s.
 
hence the resultant velocity Vres is given by
 
Answered by Expert 5th May 2018, 9:03 AM
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