Answer:
110 yds
Explanation:
Well if 55 yards is 1/2 of the field then 2 x 55 = 110 yards is total field length
power = force x velocity ==> work done/time = force x velocity ==> 33750/t = force x 30 ==> force x time = 33750/30 ==> momentum(P) = 1125 kg-m/s ( since force = momentum/time). P = m x v ==> m= P/v = 1125/30 =37.5 kg.
The force of the person is 90 newtons away from the wall.
<h3>What is force?</h3>
Force can be defined as the product of mass and acceleration.
To calculate the force of the person when pushing off the wall, use the formula below.
Formula:
- F = ma................. Equation 1
Where:
- F = Force off the wall
- m = mass of the person
- a = acceleration of the person
From the question,
Given:
- m = 90 kg
- a = 1 m/s² off the wall
Substitute these values into equation 1
- F = 90×1
- F = 90 Newtons away from the wall
Hence, the force of the person is 90 newtons away from the wall.
Learn more about force here: brainly.com/question/12970081
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Answer:
The distance between the object is
Explanation:
The free body diagram of this setup is on the first uploaded image
From the question
The diameter of closely packed cones in the fovea of the eye is =
The distance of separation by one cone(not excited ) is
The distance between the two point-like object is l
The diameter of the eye is D = 2 cm
The distance of the two point-like object from the near point of the eye is A = 28 cm
From the diagram we see that the light from the two point-like object form a triangle of similar base l and d and height D and A
So for a triangle with similar base we have that
making l the subject we have