The driver of a car moving at 90.0 km/h presses down on the brake as the car enters a circular curve of radius 195.0 m. If the speed of the car is decreasing at a rate of 4.0 km/h each second, what is the magnitude of the acceleration of the car (in m/s2) at the instant its speed is 58.0 km/h?

Approximately .

Explanation:

The acceleration on the car comes in two parts:

These two accelerations are perpendicular to each other.

Convert the current velocity to meters-per-second (.)

.

Convert the acceleration due to braking to meters-per-second-squared (.)

.

Calculate the acceleration due to the circular motion:

.

Since the two accelerations are perpendicular to each other, the resultant acceleration can be found using the Pythagorean Theorem

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-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

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hope this !