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# If displacement is dependent on time such that x=2t-2 then find out average speed up-to 4 seconds

3 years ago

Kanha singhania
27 Points
Average velocity = total displacement / total time.Displacement varies as, x = 2t-2.Therefore total displacement= 2(4)-2 = 6mTotal time = 4secHence average velocity = 8/6 ~ 1.34

3 years ago
Shankarshan Dwivedi
15 Points

Average  velocity =total displacement/total time taken.  Total displacement=2*4-2=6m. Total time taken =4sec. Average velocity =6/4=1.5.
8 months ago
Ayush_Deep
120 Points

Dear friend the above two answers are wrong.
Average speed = total distance / total time
Total time = 4 sec
Position of particle at t=0 is x= -2( initial)
Position of particle at t= 4 is x = 6(final)
Total distance traveled = final - initial
= 6-(-2)= 8
Hope understood
Good regards
8 months ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions