A 925-kg pickup decelerates to rest from a speed of 97.5 km/h in a distance of 110 m. Suppose the pickup is initially moving in the positive direction. If the brakes are the only thing making the pickup come to a stop, calculate the force (in newtons, in a component along the direction of motion of the pickup) that the brakes apply on the pickup. Suppose instead of braking that the pickup hits a concrete abutment at full speed and is brought to a stop in 2.00 m. Calculate the force, in newtons, exerted on the pickup in this case. What is the ratio of the force on the pickup from the concrete to the braking force?

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: