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Grade: 12th pass
        
S= (2t+ 5t2) i^ + 2t2 j^ - 5k. what is acceleration at time 2 second 
one month ago

Answers : (1)

Arun
21951 Points
							
Dear Krishna
 
V = dS/dt = 14 t i + 4 t j – 0
hence acceleration a = dV/dt = d2S/dt2 = 14 i + 4j
 
hence after two seconds it will be 14 i + 4j = sqrt (196 + 16) = sqrt (212)
one month ago
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