Help! 50 points each and brainliest!!!
2 answers:
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Answer:
The focal length is
The radius of curvature is
Explanation:
From the question we are told that
The magnification of the mirror is
The distance of the person from the mirror(the object distance ) is
The negative sign shows that it is been placed in front of the mirror
Generally the magnification of the mirror is mathematically represented as
=>
=>
Generally from the lens equation we have that
=>
=>
Generally the radius of curvature is mathematically represented as
=>
=>
Answer:
Acceleration = 3.67 m/s²
Explanation:
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.
Mathematically, acceleration is given by the equation;
Given the following data;
Initial velocity, u = 5 m/s
Final velocity, v = 27
Time, t = 6
To find the acceleration;
Acceleration = (v - u)/t
Acceleration = (27 - 5)/6
Acceleration = 22/6
Acceleration = 3.67 m/s²