A typical running track is an oval with 74-mm-diameter half circles at each end. A runner going once around the track covers a d
1 answer:
The centripetal acceleration a is 4.32 10^-4 m/s^2.
<u>Explanation:</u>
The speed is constant and computing the speed from the distance and time for one full lap.
Given, distance = 400 mm = 0.4 m, Time = 100 s.
Computing the v = 0.4 m / 100 s
v = 4 10^-3 m/s.
radius of the circular end r = 37 mm = 0.037 m.
centripetal acceleration a = v^2 / r
= (4 10^-3)^2 / 0.037
a = 4.32 10^-4 m/s^2.
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Answer:
<em>The correct option is 1. 720 m</em>
Explanation:
<u>Projectile Motion</u>
When an object is launched in free air (no friction) with an initial speed vo at an angle , it describes a curve which has two components: one in the horizontal direction and the other in the vertical direction. The data provided gives us the initial conditions of the survival package's launch.
The initial velocity has these components in the x and y coordinates respectively:
And we know the plane has an altitude of 600 m, so the package will reach ground level when:
The vertical distance traveled is given by:
We'll set up an equation to find the time when the package lands
Solving for t, we find only one positive solution:
The horizontal distance is:
The correct option is 1. 720 m
The distance covered is 4d.
<h3>What is the distance?</h3>- Distance is a measure of how far apart two objects or locations are using numbers.
- The distance can refer to a physical length or an estimate based on other factors in both daily language and physics (e.g. "two counties over").
- The terms "distance from A to B" and "distance from B to A" are frequently used interchangeably.
- A distance function or metric is a technique to describe what it means for components of space to be "near to" or "far away" from each other in mathematics.
- It is a generalization of the idea of physical distance. Distance is a non-numerical unit of measurement in psychology and the social sciences; psychological distance is the separation of an object from itself along dimensions including time, space, and isolation.
We know that
the magnetic field is inversely proportional to distance.
To learn more about distance with the given link
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