PHYSICS HELP PLSSS This question is typical on some driver’s li-cense exams: A car moving at 49 km/h skids17 m with locked brakes. How far will the car skid with locked brakesat 122.5 km/h? Assume that energy loss isdue only to sliding friction. Answer in units of m.

This question is typical on some driver’s li-cense exams: A car moving at 49 km/h skids17 m with locked brakes.How far will the car skid with locked brakesat 122.5 km/h? Assume that energy loss isdue only to sliding friction.Answer in units of m.

Explanation:

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

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.