Nce?
1 answer:
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Answer:
Total distance traveled by bird is 10.5 km.
Explanation:
Given that,
Velocity of runner= 8.4 km/hr
Distance = 6.3 km
Velocity of bird = 42 km/hr
Suppose, How far does the bird travel?
We need to calculate the time of bird
Using formula of time
Put the value into the formula
We need to calculate the distance runner travels during time period
Using formula of distance
We need to calculate the distance of runner to FL
Using distance
We need to calculate the net closing speed between runner and bird
Using speed
We need to calculate the time for runner and bird to meet
Using formula of time
Put the value into the formula
We need to calculate the distance covered by runner
Using formula of distance
Put the value into the formula
We need to calculate the distance covered by bird to runner
Using formula of distance
Put the value into the formula
We need to calculate the total distance
Using distance
Hence, Total distance traveled by bird is 10.5 km.
Answer:
The acceleration of a point on the wheel is 11.43 m/s² acting radially inward.
Explanation:
The centripetal acceleration acts on a body when it is performing a circular motion.
Here, a point on the bicycle is performing circular motion as the rotation of the wheel produces a circular motion.
The centripetal acceleration of a point moving with a velocity and at a distance of
from the axis of rotation is given as:
Here,
∴
Therefore, the acceleration of a point on the wheel is 11.43 m/s² acting radially inward.