A bus initially moving at 20 m/s with an acceleration of -4m/s2 for 5 seconds. What is the displacement AND final velocity?

50m; 0m/s.

Explanation:

Given the following data;

Initial velocity = 20m/s

Acceleration, a = - 4m/s²

Time, t = 5secs

To find the displacement, we would use the second equation of motion;

Substituting into the equation, we have;

Displacement, S = 50m

Next, to find the final velocity, we would use the third equation of motion;

Where;

Substituting into the equation, we have;

Final velocity, V = 0m/s

Therefore, the displacement of the bus is 50m and its final velocity is 0m/s.

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the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.