A string with a 10-gram decoration on the end is attached to the rear-view mirror of your friend’s father’s Ferrari. You’re curious about how fast this fancy sports car can accelerate. You decide to measure the acceleration by measuring the angle that the string makes with the vertical when the car is accelerating. Your friend’s father puts the pedal to the metal. Using a protractor, you measure that the angle the string makes with the vertical is 40 while the car is accelerating. What is the acceleration of the Ferrari? [Hints: Choose the decoration as the system for your force diagram. Use the vertical-component equation of Newton’s second law to find the magnitude of the force that the string exerts on the decoration. Then continue wi
A string with a 10-gram decoration on the end is attached to the rear-view mirror of your friend’s father’s Ferrari. You’re curious about how fast this fancy sports car can accelerate. You decide to measure the acceleration by measuring the angle that the string makes with the vertical when the car is accelerating. Your friend’s father puts the pedal to the metal. Using a protractor, you measure that the angle the string makes with the vertical is 40 while the car is accelerating. What is the acceleration of the Ferrari? [Hints: Choose the decoration as the system for your force diagram. Use the vertical-component equation of Newton’s second law to find the magnitude of the force that the string exerts on the decoration. Then continue with the horizontal-component equation.]
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