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A particle is projected ...at that time its kinetic energy was KE1......and at the top point where vertical velocity is 0 its kinetic energy was KE2 ....... The ratio of KE2 : KE1 is 3:4 ........ find the difference in their velocities ...... sir here we have to find difference in velocity according to the vector component (as per answer)..... Sir then how would we come to know that is it asking for vector form or magnitude form if both answers are given .....

10 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
							

Dear ankit Shukla

Velocity is a vector quantity ,if they are asking difference in velocity then you vectorialy find it.


and speed is a scalor quantity,if in question sped is maintion then you should find difference in their magnitude.


for this question U/2 is correct answer


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Badiuddin

10 years ago
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