Question 4 of 20
1 answer:
You might be interested in
Answer:
Explanation:
The speed of hare = .15 x 25 = 3.75 m /s . Let tortoise took t second to complete the race .
Distance traveled by it = .15 t
Distance traveled by hare = .15 t - .35 m
Time taken by hare to complete this distance
= t - 5 x 60 s
Speed of hare
= Distance / time
( .15t-.35 ) / t - 300 , so
t = 312.40
= 5 minutes 12.4 seconds
Distance of race
312.4 x speed of tortoise
= 312.4 x .15
= 46.85 m
Answer:
it will take to reach its final rotating speed
Explanation:
Let initially the turntable is at rest
So its initial angular velocity will be
Let the turn table is rotating with an angular acceleration
According to first equation of motion
We know that , here
So
So it will take to reach its final rotating speed