Jessie was driving her 2000-kg Camry when she dropped her phone. She leaned down to pick it and just then a small child rode his bicycle into the street 45 meters in front of her. She is traveling at 15 m/s (about 30 mph). She sees the boy and slams on the brakes and the car comes to a stop with the bumper of the car just touching the tire of the bike. Whew!! Calculate the braking force of the car.

i would say the answer is food.

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which three statements are true about all alloys?

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.