The distance required for a car to come to a stop will vary depending on how fast the car is moving. suppose that a certain car traveling down the road at a speed of 10 m / s can come to a complete stop within a distance of 20 m . assuming the road conditions remain the same, what would be the stopping distance required for the same car if it were moving at speeds of 5 m / s , 20 m / s , or 40 m / s ?

5 m

80 m

320 m

Explanation:

= Initial speed of the car = 10 ms⁻¹

= Final speed of the car = 0 ms⁻¹

= Stopping distance of the car = 20 m

= acceleration of the car

On the basis of above data, we can use the kinematics equation

= Initial speed of the car = 5 ms⁻¹

= Final speed of the car = 0 ms⁻¹

= Stopping distance of the car

= acceleration of the car = - 2.5 ms⁻²

On the basis of above data, we can use the kinematics equation

= Initial speed of the car = 20 ms⁻¹

= Final speed of the car = 0 ms⁻¹

= Stopping distance of the car

= acceleration of the car = - 2.5 ms⁻²

On the basis of above data, we can use the kinematics equation

= Initial speed of the car = 40 ms⁻¹

= Final speed of the car = 0 ms⁻¹

= Stopping distance of the car

= acceleration of the car = - 2.5 ms⁻²

On the basis of above data, we can use the kinematics equation

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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