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Grade: 9
        
an object move with a uniform speed v1 for a long time t  and move with a uniform speed v2 futher time t find the average speed
3 years ago

Answers : (1)

noogler
489 Points
							
L1=v1t , L2=v2t
Vavg=tot.dis./tot. time = L1+L2/t+t = (v1+v2)t/2t = v1+v2/2
avg. speed=v1+v2/2
 
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3 years ago
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