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Q:A scooter can produce a maximum acceleration of 5 m/s2. Its brake can produce a maximum retardation of 10 m/s2. Find THE MINIMUM TIME IN WHICH IT STARTS THE REST, COVERS A DISTANCE OF 1.5 km and stops again.
Final Answer : 30s
Steps:
1) Make v-t graph of above motion.
2) Inter relate between retardation and t2 and t1.
3) Area of V-t graph gives displacement.
Q:A scooter can produce a maximum acceleration of 5 m/s2. Its brake can produce a maximum retardation of 10 m/s2. Find THE MINIMUM TIME IN WHICH IT STARTS THE REST, COVERS A DISTANCE OF 1.5 km and stops again.
Final Answer : 30s
Steps:
1) Make v-t graph of above motion.
2) Inter relate between retardation and t2 and t1.
3) Area of V-t graph gives displacement.
Attachments:
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