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a body start from rest with an acceleration 2 m/s2 till it attaains the maximum velocity then retards with 3 m/s2. if total time taken is 10 second, then maximum speed attained is

a body start from rest with an acceleration 2 m/s2 till it attaains the maximum velocity then retards with 3 m/s2. if total time taken is 10 second, then maximum speed attained is

Grade:12th Pass

1 Answers

sanatan sharma
26 Points
9 years ago

the maximum speed attained will be 12m/s .

drawing the velocity-time graph will be helpful

a triangle will be formed 

drop a perpendicular from the upper vertex to x-axis

now two triangles will be formed

since we know that the slope of v-t graph gives acceleration 

apply tanΘ and get the answer

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