the position of an object moving along y axis is given by y=5t^2 where t is measured in seconds what it is velocity at t=3sec and t=5sec and also find out the average velocity of the object between t=3sec and t=5sec
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GiveN :
- y = 5t² m
To FinD :
- Velocity at t = 3s
- Velocity at t = 5s
- Average velocity between 3 and 5s
SolutioN :
_____________________
Put t = 3s
⇒v1 = 10(3)
⇒v1 = 30 m/s
____________________
Put t = 5s
⇒v2 = 10(5)
⇒v2 = 50 m/s
___________________
Average Velocity :
⇒V_avg = (v1 + v2)/2
⇒V_avg = (30 + 50)/2
⇒V_avg = 80/2
⇒V_avg = 40 m/s
➜ Average velocity is 40 m/s
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