Answer:
Part a)
Part B)
Explanation:
Part A)
At the top of the hump the force on the rider is
1) Normal force
2) weight
so here we know that
Part B)
At the top of the loop we will have
in order to remain in contact the normal force must be just greater than zero
so we will have
The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.
Explanation:
A boat traveling from the dock northward to a 200m mark in the bay in less than 5minutes giving the passengers several more hours to fish is a typical and best example of velocity description.
Velocity is the displacement of a body divided by the time taken.
Velocity =
Displacement is the distance covered in a specific direction. Time is duration of the travel.
Velocity is a vector quantity that has both magnitude and direction. This implies that the value of velocity is recorded with a directional attribute.
We can say velocity is the speed of a body in a given direction
Only the last option gives the displacement of the body and the duration it traveled.
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Answer:
Torque,
Explanation:
Given that,
Position of the flea,
Force acting on the flea,
We need to find the net torque about the origin on a flea located at coordinates. Its formula is given by :
On solving the cross product of r and F, we get :
So, the net torque about the origin on a flea is . Hence, this is the required solution.